Final Exam. Wednesday, December 10. 1:30 4:30 pm. University Centre Rooms

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Final Exam. Wednesday, December 10. 1:30 4:30 pm. University Centre Rooms"

Transcription

1 Final Exam Wednesday, December 10 1:30 4:30 pm University Centre Rooms questions, multiple choice The whole course, equal weighting Formula sheet provided 26

2 Lab and Tutorial Marks Final marks will be put on the web by Friday, December 5 Check your marks! Report errors to Dr. Kunkel (402G Allen) or your TA Thermal Conductivity Read about thermal conductivity in chapter 13 (13.2) for the last lab This is what you need for the final exam 27

3 Specific Heat The amount of heat, Q, to raise the temperature of a mass m of a substance by ΔT o C is: Q = mcδt c = specific heat capacity (or specific heat) in J/(kg.C o ). 28

4 12.39 Blood carries excess energy from the interior to the surface, where energy is dispersed. While exercising, 0.6 kg of blood flows to the surface at 37 o C and releases 2000 J of energy. Find the temperature at which blood leaves the surface. Specific heat of blood = 4186 J/(kg.C o ) The blood loses 2000 J of energy and cools, Q = 2000 J:!T = Q mc = 2000 J = 0.8 C So, blood returns at = 36.2 o C 29

5 Calorimetry Heat is a flow of energy, so should be included in the conservation of energy equation. Energy is conserved, no matter what its form. Calorimetry: studies the flow of heat from one object to another. Calorimeter a thermally insulated container no flow of heat to or from outside. Measure specific heat of an unknown material by heating or cooling to a known temperature, putting into the calorimeter full of liquid of known specific heat, and measuring the equilibrium temperature. 30

6 A calorimeter is made from 0.15 kg of aluminum and contains 0.2 kg of water. Initially, the calorimeter and water are at 18 o C. A 0.04 kg mass of unknown material is heated to 97 o C and added to the water. At equilibrium, everything is at 22 o C. What is the specific heat of the mass? Calculate the heat flow into each object, set the sum to zero: m Al c Al!T Al + m H2O c H2O!T H2O + m c!t = 0 Al water unknown So, c = m Al c Al!T Al m H2O c H2O!T H2O m!t c = (22 18) (22 18) 0.04 (22 97) = 1296 J/(kg.C ) 31

7 12.40 A piece of glass is at 83 o C. An equal mass of liquid at 43 o C is poured over the glass. An equilibrium temperature of 53 o C is reached. Assuming negligible heat loss, find the specific heat of the liquid. Specific heat of glass = 840 J/(kg.C o ) If no loss of heat: mc glass!t glass + mc liquid!t liquid = 0 That is, 840(53 83) + c liquid (53 43) = 0 c liquid = = 2520 J/(kg.C ) 32

8 Latent Heat: Change of Phase The three phases of matter: gas, liquid, solid. Heat is absorbed, or released, when melting/freezing or boiling/ condensation occurs, and temperature remains constant during the change. Latent heat: the energy absorbed or released during a phase change. 33

9 Latent Heat Heat absorbed/released, Q = ml, L = latent heat. Melting/freezing: Latent heat of fusion L f = heat absorbed/released per kilogram on melting/freezing. Boiling/condensing: Latent heat of vaporization L v = heat absorbed/released per kilogram on boiling/condensing. Water: latent heat of fusion = J/kg latent heat of vaporization = J/kg 34

10 12.56 The latent heat of vaporization of water at body temperature is J/kg. To cool the body of a 75 kg jogger (average specific heat = 3500 J/(kg.C o )), by 1.5 o C, how many kilograms of water in the form of sweat have to be evaporated? The vaporization of 1 kg of water requires J of energy. Cooling a mass of 75 kg by 1.5 o C releases an amount of energy equal to: Q = m c!t = = 393,800 J This thermal energy will vaporize a mass m of water: m = 393,800 J J/kg = 0.16 kg of water 35

11 12.58 A 0.2 kg piece of aluminum has a temperature of -155 o C and is added to 1.5 kg of water at 3 o C. At equilibrium, the temperature is 0 o C. Find the mass of ice that has become frozen. Specific heats: Al = 900 J/(kg.C o ) Water = 4186 J/(kg.C o ) Latent heat of fusion of water: J/kg Let m be the mass of water that freezes. Then (1.5 m) kg does not freeze. Heat flows: 0.2 kg of aluminum warms from -155 o C to 0 o C 1.5 kg of water cools from 3 o C to 0 o C mass m of water freezes at 0 o C 36

12 Heat flows: 0.2 kg of aluminum warms from -155 o C to 0 o C 1.5 kg of water cools from 3 o C to 0 o C mass m of water freezes Heat flow: [ ( )] + [ (0 3)] [m ( )] = 0 warm 0.2 kg Al to 0 o C cool 1.5 kg water to 0 o C freeze m kg of water at 0 o C m = kg 37

13 g of liquid water are at 0 o C and another 2 g are at 100 o C. Heat is removed from the water at 0 o C, completely freezing it at 0 o C. This heat is used to vaporize some of the water at 100 o C. How much liquid water remains? L f = J/kg released when water freezes L v = J/kg absorbed when water vaporizes Freeze 2 g water heat 0.002L f is released Heat 0.002L f vaporizes mass m of water Heat released in freezing water = ml f = ( ) = 670 J Mass of water at 100 o C that is vaporized by 670 J of heat is: m = (670 J)/( J/kg) = kg = 0.3 g 1.7 g of liquid water remain. 38

14 12.65 It is claimed that if a lead bullet goes fast enough, it can melt completely when it comes to a halt suddenly, and all its kinetic energy is converted into heat via friction. Find the minimum speed for this to happen for a bullet at 30 o C. Lead: c = 128 J/(kg.C o ) L f = 23,200 J/kg, melting point o C Heat mass m of lead from 30 o C to o C Melt mass m of lead Heating: Q 1 = m c!t = m 128( ) = 38,054m J Melting Q 2 = m L f = 23,200m J Total heat needed = (38, ,200)m = 61,254m J = 1 2 mv2 v = 350 m/s 39

15 Summary of Temperature and Heat Temperature: T ( o C) = T (K) Thermal expansion: Specific heat: Latent heat:!l = "L 0!T!V = "V 0!T Q = mc!t Q = ml f melting/freezing Q = ml v boiling/condensation Heat flows from high temperature to low 40

REASONING AND SOLUTION

REASONING AND SOLUTION 39. REASONING AND SOLUTION The heat released by the blood is given by Q cm T, in which the specific heat capacity c of the blood (water) is given in Table 12.2. Then Therefore, T Q cm 2000 J 0.8 C [4186

More information

Type: Single Date: Homework: READ 12.8, Do CONCEPT Q. # (14) Do PROBLEMS (40, 52, 81) Ch. 12

Type: Single Date: Homework: READ 12.8, Do CONCEPT Q. # (14) Do PROBLEMS (40, 52, 81) Ch. 12 Type: Single Date: Objective: Latent Heat Homework: READ 12.8, Do CONCEPT Q. # (14) Do PROBLEMS (40, 52, 81) Ch. 12 AP Physics B Date: Mr. Mirro Heat and Phase Change When bodies are heated or cooled their

More information

Energy Matters Heat. Changes of State

Energy Matters Heat. Changes of State Energy Matters Heat Changes of State Fusion If we supply heat to a lid, such as a piece of copper, the energy supplied is given to the molecules. These start to vibrate more rapidly and with larger vibrations

More information

Chapter 18 Temperature, Heat, and the First Law of Thermodynamics. Problems: 8, 11, 13, 17, 21, 27, 29, 37, 39, 41, 47, 51, 57

Chapter 18 Temperature, Heat, and the First Law of Thermodynamics. Problems: 8, 11, 13, 17, 21, 27, 29, 37, 39, 41, 47, 51, 57 Chapter 18 Temperature, Heat, and the First Law of Thermodynamics Problems: 8, 11, 13, 17, 21, 27, 29, 37, 39, 41, 47, 51, 57 Thermodynamics study and application of thermal energy temperature quantity

More information

Specific Heat Capacity and Latent Heat Questions A2 Physics

Specific Heat Capacity and Latent Heat Questions A2 Physics 1. An electrical heater is used to heat a 1.0 kg block of metal, which is well lagged. The table shows how the temperature of the block increased with time. temp/ C 20.1 23.0 26.9 30.0 33.1 36.9 time/s

More information

TEACHER BACKGROUND INFORMATION THERMAL ENERGY

TEACHER BACKGROUND INFORMATION THERMAL ENERGY TEACHER BACKGROUND INFORMATION THERMAL ENERGY In general, when an object performs work on another object, it does not transfer all of its energy to that object. Some of the energy is lost as heat due to

More information

FXA 2008. Candidates should be able to : Define and apply the concept of specific heat capacity. Select and apply the equation : E = mcδθ

FXA 2008. Candidates should be able to : Define and apply the concept of specific heat capacity. Select and apply the equation : E = mcδθ UNIT G484 Module 3 4.3.3 Thermal Properties of Materials 1 Candidates should be able to : Define and apply the concept of specific heat capacity. Select and apply the equation : E = mcδθ The MASS (m) of

More information

UNIT 6a TEST REVIEW. 1. A weather instrument is shown below.

UNIT 6a TEST REVIEW. 1. A weather instrument is shown below. UNIT 6a TEST REVIEW 1. A weather instrument is shown below. Which weather variable is measured by this instrument? 1) wind speed 3) cloud cover 2) precipitation 4) air pressure 2. Which weather station

More information

Preview of Period 5: Thermal Energy, the Microscopic Picture

Preview of Period 5: Thermal Energy, the Microscopic Picture Preview of Period 5: Thermal Energy, the Microscopic Picture 5.1 Temperature and Molecular Motion What is evaporative cooling? 5.2 Temperature and Phase Changes How much energy is required for a phase

More information

Name: Class: Date: 10. Some substances, when exposed to visible light, absorb more energy as heat than other substances absorb.

Name: Class: Date: 10. Some substances, when exposed to visible light, absorb more energy as heat than other substances absorb. Name: Class: Date: ID: A PS Chapter 13 Review Modified True/False Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 1. In all cooling

More information

Test 5 Review questions. 1. As ice cools from 273 K to 263 K, the average kinetic energy of its molecules will

Test 5 Review questions. 1. As ice cools from 273 K to 263 K, the average kinetic energy of its molecules will Name: Thursday, December 13, 2007 Test 5 Review questions 1. As ice cools from 273 K to 263 K, the average kinetic energy of its molecules will 1. decrease 2. increase 3. remain the same 2. The graph below

More information

Science Department Mark Erlenwein, Assistant Principal

Science Department Mark Erlenwein, Assistant Principal Staten Island Technical High School Vincent A. Maniscalco, Principal The Physical Setting: CHEMISTRY Science Department Mark Erlenwein, Assistant Principal - Unit 1 - Matter and Energy Lessons 9-14 Heat,

More information

2. Room temperature: C. Kelvin. 2. Room temperature:

2. Room temperature: C. Kelvin. 2. Room temperature: Temperature I. Temperature is the quantity that tells how hot or cold something is compared with a standard A. Temperature is directly proportional to the average kinetic energy of molecular translational

More information

Every mathematician knows it is impossible to understand an elementary course in thermodynamics. ~V.I. Arnold

Every mathematician knows it is impossible to understand an elementary course in thermodynamics. ~V.I. Arnold Every mathematician knows it is impossible to understand an elementary course in thermodynamics. ~V.I. Arnold Radiation Radiation: Heat energy transmitted by electromagnetic waves Q t = εσat 4 emissivity

More information

5 Answers and Solutions to Text Problems

5 Answers and Solutions to Text Problems Energy and States of Matter 5 Answers and Solutions to Text Problems 5.1 At the top of the hill, all of the energy of the car is in the form of potential energy. As it descends down the hill, potential

More information

Chapter 10 Temperature and Heat

Chapter 10 Temperature and Heat Chapter 10 Temperature and Heat GOALS When you have mastered the contents of this chapter, you will be able to achieve the following goals: Definitions Define each of the following terms, and use it an

More information

Unit 3: States of Matter Practice Exam

Unit 3: States of Matter Practice Exam Page 1 Unit 3: States of Matter Practice Exam Multiple Choice. Identify the choice that best completes the statement or answers the question. 1. Two gases with unequal masses are injected into opposite

More information

Physical and Chemical Properties of Matter

Physical and Chemical Properties of Matter Physical and Chemical Properties of Matter What is matter? Anything that has mass and takes up space Chemical or Physical Property? Physical properties of matter: characteristics that can be observed or

More information

Chapter 12 - Liquids and Solids

Chapter 12 - Liquids and Solids Chapter 12 - Liquids and Solids 12-1 Liquids I. Properties of Liquids and the Kinetic Molecular Theory A. Fluids 1. Substances that can flow and therefore take the shape of their container B. Relative

More information

Note: You will receive no credit for late submissions. To learn more, read your instructor's Grading Policy

Note: You will receive no credit for late submissions. To learn more, read your instructor's Grading Policy 1/7 2009/11/14 上 午 11:10 Manage this Assignment: Chapter 16 Due: 12:00am on Saturday, July 3, 2010 Note: You will receive no credit for late submissions. To learn more, read your instructor's Grading Policy

More information

Energy and Chemical Reactions. Characterizing Energy:

Energy and Chemical Reactions. Characterizing Energy: Energy and Chemical Reactions Energy: Critical for virtually all aspects of chemistry Defined as: We focus on energy transfer. We observe energy changes in: Heat Transfer: How much energy can a material

More information

Answer, Key Homework 6 David McIntyre 1

Answer, Key Homework 6 David McIntyre 1 Answer, Key Homework 6 David McIntyre 1 This print-out should have 0 questions, check that it is complete. Multiple-choice questions may continue on the next column or page: find all choices before making

More information

Chapter 4 Practice Quiz

Chapter 4 Practice Quiz Chapter 4 Practice Quiz 1. Label each box with the appropriate state of matter. A) I: Gas II: Liquid III: Solid B) I: Liquid II: Solid III: Gas C) I: Solid II: Liquid III: Gas D) I: Gas II: Solid III:

More information

Chemistry 13: States of Matter

Chemistry 13: States of Matter Chemistry 13: States of Matter Name: Period: Date: Chemistry Content Standard: Gases and Their Properties The kinetic molecular theory describes the motion of atoms and molecules and explains the properties

More information

Temperature. Temperature

Temperature. Temperature Chapter 8 Temperature Temperature a number that corresponds to the warmth or coldness of an object measured by a thermometer is a per-particle property no upper limit definite limit on lower end Temperature

More information

Exam on Heat and Energy

Exam on Heat and Energy Exam on Heat and Energy True/False Indicate whether the statement is true or false. 1. Energy is the ability to cause change. 2. Energy is measured in joules. 3. When you ride a playground swing, your

More information

Thermochemistry. r2 d:\files\courses\1110-20\99heat&thermorans.doc. Ron Robertson

Thermochemistry. r2 d:\files\courses\1110-20\99heat&thermorans.doc. Ron Robertson Thermochemistry r2 d:\files\courses\1110-20\99heat&thermorans.doc Ron Robertson I. What is Energy? A. Energy is a property of matter that allows work to be done B. Potential and Kinetic Potential energy

More information

CHAPTER 14 THE CLAUSIUS-CLAPEYRON EQUATION

CHAPTER 14 THE CLAUSIUS-CLAPEYRON EQUATION CHAPTER 4 THE CAUIU-CAPEYRON EQUATION Before starting this chapter, it would probably be a good idea to re-read ections 9. and 9.3 of Chapter 9. The Clausius-Clapeyron equation relates the latent heat

More information

Chapter 2, Lesson 5: Changing State Melting

Chapter 2, Lesson 5: Changing State Melting Chapter 2, Lesson 5: Changing State Melting Key Concepts Melting is a process that causes a substance to change from a solid to a liquid. Melting occurs when the molecules of a solid speed up enough that

More information

Intermolecular Forces

Intermolecular Forces Intermolecular Forces: Introduction Intermolecular Forces Forces between separate molecules and dissolved ions (not bonds) Van der Waals Forces 15% as strong as covalent or ionic bonds Chapter 11 Intermolecular

More information

Chapter 10 Temperature and Heat

Chapter 10 Temperature and Heat Chapter 10 Temperature and Heat What are temperature and heat? Are they the same? What causes heat? What Is Temperature? How do we measure temperature? What are we actually measuring? Temperature and Its

More information

Phys222 W11 Quiz 1: Chapters 19-21 Keys. Name:

Phys222 W11 Quiz 1: Chapters 19-21 Keys. Name: Name:. In order for two objects to have the same temperature, they must a. be in thermal equilibrium.

More information

Calculating Heat Loss by Mark Crombie, Chromalox

Calculating Heat Loss by Mark Crombie, Chromalox Calculating Heat Loss by Mark Crombie, Chromalox Posted: January 30, 2006 This article deals with the basic principles of heat transfer and the calculations used for pipes and vessels. By understanding

More information

So T decreases. 1.- Does the temperature increase or decrease? For 1 mole of the vdw N2 gas:

So T decreases. 1.- Does the temperature increase or decrease? For 1 mole of the vdw N2 gas: 1.- One mole of Nitrogen (N2) has been compressed at T0=273 K to the volume V0=1liter. The gas goes through the free expansion process (Q = 0, W = 0), in which the pressure drops down to the atmospheric

More information

SEPARATION OF A MIXTURE OF SUBSTANCES LAB

SEPARATION OF A MIXTURE OF SUBSTANCES LAB SEPARATION OF A MIXTURE OF SUBSTANCES LAB Purpose: Every chemical has a set of defined physical properties, and when combined they present a unique fingerprint for that chemical. When chemicals are present

More information

1. The Kinetic Theory of Matter states that all matter is composed of atoms and molecules that are in a constant state of constant random motion

1. The Kinetic Theory of Matter states that all matter is composed of atoms and molecules that are in a constant state of constant random motion Physical Science Period: Name: ANSWER KEY Date: Practice Test for Unit 3: Ch. 3, and some of 15 and 16: Kinetic Theory of Matter, States of matter, and and thermodynamics, and gas laws. 1. The Kinetic

More information

The First Law of Thermodynamics

The First Law of Thermodynamics The First aw of Thermodynamics Q and W are process (path)-dependent. (Q W) = E int is independent of the process. E int = E int,f E int,i = Q W (first law) Q: + heat into the system; heat lost from the

More information

ENTHALPY CHANGES FOR A CHEMICAL REACTION scaling a rxn up or down (proportionality) quantity 1 from rxn heat 1 from Δ r H. = 32.

ENTHALPY CHANGES FOR A CHEMICAL REACTION scaling a rxn up or down (proportionality) quantity 1 from rxn heat 1 from Δ r H. = 32. CHEMISTRY 103 Help Sheet #10 Chapter 4 (Part II); Sections 4.6-4.10 Do the topics appropriate for your lecture Prepared by Dr. Tony Jacob http://www.chem.wisc.edu/areas/clc (Resource page) Nuggets: Enthalpy

More information

PHYSICAL SEPARATION TECHNIQUES. Introduction

PHYSICAL SEPARATION TECHNIQUES. Introduction PHYSICAL SEPARATION TECHNIQUES Lab #2 Introduction When two or more substances, that do not react chemically, are blended together, the result is a mixture in which each component retains its individual

More information

ES 106 Laboratory # 2 HEAT AND TEMPERATURE

ES 106 Laboratory # 2 HEAT AND TEMPERATURE ES 106 Laboratory # 2 HEAT AND TEMPERATURE Introduction Heat transfer is the movement of heat energy from one place to another. Heat energy can be transferred by three different mechanisms: convection,

More information

Freezing Point Depression: Why Don t Oceans Freeze? Teacher Advanced Version

Freezing Point Depression: Why Don t Oceans Freeze? Teacher Advanced Version Freezing Point Depression: Why Don t Oceans Freeze? Teacher Advanced Version Freezing point depression describes the process where the temperature at which a liquid freezes is lowered by adding another

More information

Worksheet #17. 2. How much heat is released when 143 g of ice is cooled from 14 C to 75 C, if the specific heat capacity of ice is 2.087 J/(g C).

Worksheet #17. 2. How much heat is released when 143 g of ice is cooled from 14 C to 75 C, if the specific heat capacity of ice is 2.087 J/(g C). Worksheet #17 Calculating Heat 1. How much heat is needed to bring 12.0 g of water from 28.3 C to 43.87 C, if the specific heat capacity of water is 4.184 /(g? 2. How much heat is released when 143 g of

More information

Specific Heat (slope and steepness)

Specific Heat (slope and steepness) 1 Specific Heat (slope and steepness) 10 pages. According to the Physical Science text book, the Specific Heat of a material is DEFINED as the following: Specific heat is the amount of heat energy required

More information

Bomb Calorimetry. Example 4. Energy and Enthalpy

Bomb Calorimetry. Example 4. Energy and Enthalpy Bomb Calorimetry constant volume often used for combustion reactions heat released by reaction is absorbed by calorimeter contents need heat capacity of calorimeter q cal = q rxn = q bomb + q water Example

More information

Chapter 10: Temperature and Heat

Chapter 10: Temperature and Heat Chapter 10: Temperature and Heat 1. The temperature of a substance is A. proportional to the average kinetic energy of the molecules in a substance. B. equal to the kinetic energy of the fastest moving

More information

Vaporization of Liquid Nitrogen

Vaporization of Liquid Nitrogen Vaporization of Liquid Nitrogen Goals and Introduction As a system exchanges thermal energy with its surroundings, the temperature of the system will usually increase or decrease, depending on the direction

More information

Grade Level: 6 th grade Presented by: Sally Ferrelle, Oglethorpe Academy, Savannah, GA Length of Unit: 5 lessons

Grade Level: 6 th grade Presented by: Sally Ferrelle, Oglethorpe Academy, Savannah, GA Length of Unit: 5 lessons HEAT and TEMPERATURE Grade Level: 6 th grade Presented by: Sally Ferrelle, Oglethorpe Academy, Savannah, GA Length of Unit: 5 lessons I. ABSTRACT In the unit on heat and temperature, the students will

More information

Current Staff Course Unit/ Length. Basic Outline/ Structure. Unit Objectives/ Big Ideas. Properties of Waves A simple wave has a PH: Sound and Light

Current Staff Course Unit/ Length. Basic Outline/ Structure. Unit Objectives/ Big Ideas. Properties of Waves A simple wave has a PH: Sound and Light Current Staff Course Unit/ Length August August September September October Unit Objectives/ Big Ideas Basic Outline/ Structure PS4- Types of Waves Because light can travel through space, it cannot be

More information

Chemical Changes. Measuring a Chemical Reaction. Name(s)

Chemical Changes. Measuring a Chemical Reaction. Name(s) Chemical Changes Name(s) In the particle model of matter, individual atoms can be bound tightly to other atoms to form molecules. For example, water molecules are made up of two hydrogen atoms bound to

More information

Experiment 1: Colligative Properties

Experiment 1: Colligative Properties Experiment 1: Colligative Properties Determination of the Molar Mass of a Compound by Freezing Point Depression. Objective: The objective of this experiment is to determine the molar mass of an unknown

More information

CHEM 105 HOUR EXAM III 28-OCT-99. = -163 kj/mole determine H f 0 for Ni(CO) 4 (g) = -260 kj/mole determine H f 0 for Cr(CO) 6 (g)

CHEM 105 HOUR EXAM III 28-OCT-99. = -163 kj/mole determine H f 0 for Ni(CO) 4 (g) = -260 kj/mole determine H f 0 for Cr(CO) 6 (g) CHEM 15 HOUR EXAM III 28-OCT-99 NAME (please print) 1. a. given: Ni (s) + 4 CO (g) = Ni(CO) 4 (g) H Rxn = -163 k/mole determine H f for Ni(CO) 4 (g) b. given: Cr (s) + 6 CO (g) = Cr(CO) 6 (g) H Rxn = -26

More information

14 HEAT AND HEAT TRANSFER METHODS

14 HEAT AND HEAT TRANSFER METHODS CHAPTER 14 HEAT AND HEAT TRANSFER METHODS 469 14 HEAT AND HEAT TRANSFER METHODS Figure 14.1 (a) The chilling effect of a clear breezy night is produced by the wind and by radiative heat transfer to cold

More information

13.1 The Nature of Gases. What is Kinetic Theory? Kinetic Theory and a Model for Gases. Chapter 13: States of Matter. Principles of Kinetic Theory

13.1 The Nature of Gases. What is Kinetic Theory? Kinetic Theory and a Model for Gases. Chapter 13: States of Matter. Principles of Kinetic Theory Chapter 13: States of Matter The Nature of Gases The Nature of Gases kinetic molecular theory (KMT), gas pressure (pascal, atmosphere, mm Hg), kinetic energy The Nature of Liquids vaporization, evaporation,

More information

Test Bank - Chapter 3 Multiple Choice

Test Bank - Chapter 3 Multiple Choice Test Bank - Chapter 3 The questions in the test bank cover the concepts from the lessons in Chapter 3. Select questions from any of the categories that match the content you covered with students. The

More information

Chapter 17: Change of Phase

Chapter 17: Change of Phase Chapter 17: Change of Phase Conceptual Physics, 10e (Hewitt) 3) Evaporation is a cooling process and condensation is A) a warming process. B) a cooling process also. C) neither a warming nor cooling process.

More information

Energy and Energy Transformations Test Review

Energy and Energy Transformations Test Review Energy and Energy Transformations Test Review Completion: 1. Mass 13. Kinetic 2. Four 14. thermal 3. Kinetic 15. Thermal energy (heat) 4. Electromagnetic/Radiant 16. Thermal energy (heat) 5. Thermal 17.

More information

Chapter 3. Thermal Energy

Chapter 3. Thermal Energy Chapter 3 Thermal Energy In order to apply energy conservation to a falling ball or a roller coaster in the previous chapter, we had to assume that friction (with the air or the track) was negligible.

More information

Experiment #4, Ohmic Heat

Experiment #4, Ohmic Heat Experiment #4, Ohmic Heat 1 Purpose Physics 18 - Fall 013 - Experiment #4 1 1. To demonstrate the conversion of the electric energy into heat.. To demonstrate that the rate of heat generation in an electrical

More information

1. At which temperature would a source radiate the least amount of electromagnetic energy? 1) 273 K 3) 32 K 2) 212 K 4) 5 K

1. At which temperature would a source radiate the least amount of electromagnetic energy? 1) 273 K 3) 32 K 2) 212 K 4) 5 K 1. At which temperature would a source radiate the least amount of electromagnetic energy? 1) 273 K 3) 32 K 2) 212 K 4) 5 K 2. How does the amount of heat energy reflected by a smooth, dark-colored concrete

More information

Online Changing States of Matter Lab Solids What is a Solid? 1. How are solids different then a gas or a liquid?

Online Changing States of Matter Lab Solids What is a Solid? 1. How are solids different then a gas or a liquid? Name: Period: Online Changing States of Matter Lab Solids What is a Solid? 1. How are solids different then a gas or a liquid? 2. What are the atoms doing in a solid? 3. What are the characteristics of

More information

Name Class Date. In the space provided, write the letter of the term or phrase that best completes each statement or best answers each question.

Name Class Date. In the space provided, write the letter of the term or phrase that best completes each statement or best answers each question. Assessment Chapter Test A Chapter: States of Matter In the space provided, write the letter of the term or phrase that best completes each statement or best answers each question. 1. The kinetic-molecular

More information

States of Matter CHAPTER 10 REVIEW SECTION 1. Name Date Class. Answer the following questions in the space provided.

States of Matter CHAPTER 10 REVIEW SECTION 1. Name Date Class. Answer the following questions in the space provided. CHAPTER 10 REVIEW States of Matter SECTION 1 SHORT ANSWER Answer the following questions in the space provided. 1. Identify whether the descriptions below describe an ideal gas or a real gas. ideal gas

More information

Rusty Walker, Corporate Trainer Hill PHOENIX

Rusty Walker, Corporate Trainer Hill PHOENIX Refrigeration 101 Rusty Walker, Corporate Trainer Hill PHOENIX Compressor Basic Refrigeration Cycle Evaporator Condenser / Receiver Expansion Device Vapor Compression Cycle Cooling by the removal of heat

More information

CHEMISTRY STANDARDS BASED RUBRIC ATOMIC STRUCTURE AND BONDING

CHEMISTRY STANDARDS BASED RUBRIC ATOMIC STRUCTURE AND BONDING CHEMISTRY STANDARDS BASED RUBRIC ATOMIC STRUCTURE AND BONDING Essential Standard: STUDENTS WILL UNDERSTAND THAT THE PROPERTIES OF MATTER AND THEIR INTERACTIONS ARE A CONSEQUENCE OF THE STRUCTURE OF MATTER,

More information

Refrigeration Basics 101. By: Eric Nelson

Refrigeration Basics 101. By: Eric Nelson Refrigeration Basics 101 By: Eric Nelson Basics Refrigeration is the removal of heat from a material or space, so that it s temperature is lower than that of it s surroundings. When refrigerant absorbs

More information

A Study of Matter. Video Notes

A Study of Matter. Video Notes A Study of Matter Video Notes In this lesson you will: Define physical property, chemical property and chemical change. Describe the phases of matter. Label properties as physical or chemical. Label changes

More information

HEAT OF FORMATION OF AMMONIUM NITRATE

HEAT OF FORMATION OF AMMONIUM NITRATE 303 HEAT OF FORMATION OF AMMONIUM NITRATE OBJECTIVES FOR THE EXPERIMENT The student will be able to do the following: 1. Calculate the change in enthalpy (heat of reaction) using the Law of Hess. 2. Find

More information

Name Date Class STATES OF MATTER. SECTION 13.1 THE NATURE OF GASES (pages 385 389)

Name Date Class STATES OF MATTER. SECTION 13.1 THE NATURE OF GASES (pages 385 389) 13 STATES OF MATTER SECTION 13.1 THE NATURE OF GASES (pages 385 389) This section introduces the kinetic theory and describes how it applies to gases. It defines gas pressure and explains how temperature

More information

Thermodynamics AP Physics B. Multiple Choice Questions

Thermodynamics AP Physics B. Multiple Choice Questions Thermodynamics AP Physics B Name Multiple Choice Questions 1. What is the name of the following statement: When two systems are in thermal equilibrium with a third system, then they are in thermal equilibrium

More information

Gas Laws. The kinetic theory of matter states that particles which make up all types of matter are in constant motion.

Gas Laws. The kinetic theory of matter states that particles which make up all types of matter are in constant motion. Name Period Gas Laws Kinetic energy is the energy of motion of molecules. Gas state of matter made up of tiny particles (atoms or molecules). Each atom or molecule is very far from other atoms or molecules.

More information

Recovery of Elemental Copper from Copper (II) Nitrate

Recovery of Elemental Copper from Copper (II) Nitrate Recovery of Elemental Copper from Copper (II) Nitrate Objectives: Challenge: Students should be able to - recognize evidence(s) of a chemical change - convert word equations into formula equations - perform

More information

Chemistry 212 VAPOR PRESSURE OF WATER LEARNING OBJECTIVES

Chemistry 212 VAPOR PRESSURE OF WATER LEARNING OBJECTIVES Chemistry 212 VAPOR PRESSURE OF WATER LEARNING OBJECTIVES The learning objectives of this experiment are to explore the relationship between the temperature and vapor pressure of water. determine the molar

More information

Physical Properties of a Pure Substance, Water

Physical Properties of a Pure Substance, Water Physical Properties of a Pure Substance, Water The chemical and physical properties of a substance characterize it as a unique substance, and the determination of these properties can often allow one to

More information

Part B 2. Allow a total of 15 credits for this part. The student must answer all questions in this part.

Part B 2. Allow a total of 15 credits for this part. The student must answer all questions in this part. Part B 2 Allow a total of 15 credits for this part. The student must answer all questions in this part. 51 [1] Allow 1 credit for 3 Mg(s) N 2 (g) Mg 3 N 2 (s). Allow credit even if the coefficient 1 is

More information

First Grade Unit A: PHYSICAL SCIENCE Chapter 1: Observing Solids, Liquids and Gases Lessons 1 to 5

First Grade Unit A: PHYSICAL SCIENCE Chapter 1: Observing Solids, Liquids and Gases Lessons 1 to 5 First Grade Unit A: PHYSICAL SCIENCE Chapter 1: Observing Solids, Liquids and Gases Lessons 1 to 5 Physical Science Overview Materials (matter) come in different forms. Water can be rain falling (liquid)

More information

LAB 15: HEAT ENGINES AND

LAB 15: HEAT ENGINES AND 251 Name Date Partners LAB 15: HEAT ENGINES AND THE FIRST LAW OF THERMODYNAMICS... the quantity of heat produced by the friction of bodies, whether solid or liquid, is always proportional to the quantity

More information

ES 106 Laboratory # 6 MOISTURE IN THE ATMOSPHERE

ES 106 Laboratory # 6 MOISTURE IN THE ATMOSPHERE ES 106 Laboratory # 6 MOISTURE IN THE ATMOSPHERE 6-1 Introduction By observing, recording, and analyzing weather conditions, meteorologists attempt to define the principles that control the complex interactions

More information

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Sample Mid-Term 3 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) If you double the frequency of a vibrating object, its period A) is quartered.

More information

Chapter Test A. States of Matter MULTIPLE CHOICE. a fixed amount of STAs2 a. a solid. b. a liquid. c. a gas. d. any type of matter.

Chapter Test A. States of Matter MULTIPLE CHOICE. a fixed amount of STAs2 a. a solid. b. a liquid. c. a gas. d. any type of matter. Assessment Chapter Test A States of Matter MULTIPLE CHOICE Write the letter of the correct answer in the space provided. 1. Boyle s law explains the relationship between volume and pressure for a fixed

More information

Practical Applications of Freezing by Boiling Process

Practical Applications of Freezing by Boiling Process Practical Applications of Freezing by Boiling Process Kenny Gotlieb, Sasha Mitchell and Daniel Walsh Physics Department, Harvard-Westlake School 37 Coldwater Canyon, N. Hollywood, CA 9164 Introduction

More information

The Properties of Water (Instruction Sheet)

The Properties of Water (Instruction Sheet) The Properties of Water (Instruction Sheet) Property : High Polarity Activity #1 Surface Tension: PILE IT ON. Materials: 1 DRY penny, 1 eye dropper, water. 1. Make sure the penny is dry. 2. Begin by estimating

More information

Module 5: Combustion Technology. Lecture 34: Calculation of calorific value of fuels

Module 5: Combustion Technology. Lecture 34: Calculation of calorific value of fuels 1 P age Module 5: Combustion Technology Lecture 34: Calculation of calorific value of fuels 2 P age Keywords : Gross calorific value, Net calorific value, enthalpy change, bomb calorimeter 5.3 Calculation

More information

Materials 10-mL graduated cylinder l or 2-L beaker, preferably tall-form Thermometer

Materials 10-mL graduated cylinder l or 2-L beaker, preferably tall-form Thermometer VAPOR PRESSURE OF WATER Introduction At very low temperatures (temperatures near the freezing point), the rate of evaporation of water (or any liquid) is negligible. But as its temperature increases, more

More information

KINDERGARTEN WATER 1 WEEK LESSON PLANS AND ACTIVITIES

KINDERGARTEN WATER 1 WEEK LESSON PLANS AND ACTIVITIES KINDERGARTEN WATER 1 WEEK LESSON PLANS AND ACTIVITIES WATER CYCLE OVERVIEW OF KINDERGARTEN WEEK 1. PRE: Defining the states of matter. LAB: Discovering the properties of water. POST: Analyzing the water

More information

THIRD GRADE WEATHER 1 WEEK LESSON PLANS AND ACTIVITIES

THIRD GRADE WEATHER 1 WEEK LESSON PLANS AND ACTIVITIES THIRD GRADE WEATHER 1 WEEK LESSON PLANS AND ACTIVITIES WATER CYCLE OVERVIEW OF THIRD GRADE WATER WEEK 1. PRE: Comparing the different components of the water cycle. LAB: Contrasting water with hydrogen

More information

Triple Point Experiment

Triple Point Experiment Equipment List Rotary vane vacuum pump 2-stage, 2 to 7 CFM. For example, Edwards 2M2 (2 CFM), Edwards RV5 (3.5 CFM), Edwards E2M8 (6.7 CFM) or equivalent. Bell jar Nalgene polycarbonate plastic, 5-5/8

More information

Scholars Research Library

Scholars Research Library Available online at www.scholarsresearchlibrary.com Scholars Research Library Archives of Physics Research, 2010, 1 (2):103-111 (http://scholarsresearchlibrary.com/archive.html) ISSN 0976-0970 Lubricating

More information

Year 10 Investigation. What Makes Ice Melt Fastest? By Rebecca Hogan

Year 10 Investigation. What Makes Ice Melt Fastest? By Rebecca Hogan Investigation What Makes Ice Melt Fastest? MY WEBSITE: http://whatsubstancemeltsicefastest.weebly.com/ Nature of Investigation: What keeps us cool on hot days? What is used in our cool, refreshing beverages?

More information

Chemical Formulas, Equations, and Reactions Test Pre-AP Write all answers on your answer document.

Chemical Formulas, Equations, and Reactions Test Pre-AP Write all answers on your answer document. Name: Period: Chemical Formulas, Equations, and Reactions Test Pre-AP Write all answers on your answer document. 1. Which of the following is a NOT a physical property of hydrogen? A. It is gas C. It is

More information

EXPERIMENT 12: Empirical Formula of a Compound

EXPERIMENT 12: Empirical Formula of a Compound EXPERIMENT 12: Empirical Formula of a Compound INTRODUCTION Chemical formulas indicate the composition of compounds. A formula that gives only the simplest ratio of the relative number of atoms in a compound

More information

Chemistry: Chemical Equations

Chemistry: Chemical Equations Chemistry: Chemical Equations Write a balanced chemical equation for each word equation. Include the phase of each substance in the equation. Classify the reaction as synthesis, decomposition, single replacement,

More information

States of Matter and the Kinetic Molecular Theory - Gr10 [CAPS]

States of Matter and the Kinetic Molecular Theory - Gr10 [CAPS] OpenStax-CNX module: m38210 1 States of Matter and the Kinetic Molecular Theory - Gr10 [CAPS] Free High School Science Texts Project This work is produced by OpenStax-CNX and licensed under the Creative

More information

Distillation Experiment

Distillation Experiment Distillation Experiment CHM226 Background The distillation process is a very important technique used to separate compounds based on their boiling points. A substance will boil only when the vapor pressure

More information

Thermodynamics. Chapter 13 Phase Diagrams. NC State University

Thermodynamics. Chapter 13 Phase Diagrams. NC State University Thermodynamics Chapter 13 Phase Diagrams NC State University Pressure (atm) Definition of a phase diagram A phase diagram is a representation of the states of matter, solid, liquid, or gas as a function

More information

EXPERIMENT 15: Ideal Gas Law: Molecular Weight of a Vapor

EXPERIMENT 15: Ideal Gas Law: Molecular Weight of a Vapor EXPERIMENT 15: Ideal Gas Law: Molecular Weight of a Vapor Purpose: In this experiment you will use the ideal gas law to calculate the molecular weight of a volatile liquid compound by measuring the mass,

More information

Wet Dry Ice Lab Phase Changes and Phase Diagrams

Wet Dry Ice Lab Phase Changes and Phase Diagrams elearning 2009 Introduction Wet Dry Ice Lab Phase Changes and Phase Diagrams Publication No. 9639 As dry ice sublimes in a closed system, its three phases are clearly viewed and its phase diagram takes

More information

Saeid Rahimi. Effect of Different Parameters on Depressuring Calculation Results. 01-Nov-2010. Introduction. Depressuring parameters

Saeid Rahimi. Effect of Different Parameters on Depressuring Calculation Results. 01-Nov-2010. Introduction. Depressuring parameters Effect of Different Parameters on Depressuring Calculation Results Introduction Saeid Rahimi 01-Nov-2010 Emergency depressuring facilities are utilized to accomplish at least one of the following objectives:

More information

FUNDAMENTALS OF ENGINEERING THERMODYNAMICS

FUNDAMENTALS OF ENGINEERING THERMODYNAMICS FUNDAMENTALS OF ENGINEERING THERMODYNAMICS System: Quantity of matter (constant mass) or region in space (constant volume) chosen for study. Closed system: Can exchange energy but not mass; mass is constant

More information

Popcorn Laboratory. Hypothesis : Materials:

Popcorn Laboratory. Hypothesis : Materials: Popcorn Laboratory Problem: Popcorn kernels explode into delightful, edible parcels because of a build-up of pressure inside the kernel during heating. In this experiment you will try to calculate the

More information

Study the following diagrams of the States of Matter. Label the names of the Changes of State between the different states.

Study the following diagrams of the States of Matter. Label the names of the Changes of State between the different states. Describe the strength of attractive forces between particles. Describe the amount of space between particles. Can the particles in this state be compressed? Do the particles in this state have a definite

More information