# Heat and Temperature. Temperature Scales. Thermometers and Temperature Scales

Save this PDF as:

Size: px
Start display at page:

## Transcription

1 Heat and Temperature Thermometers and Temperature Scales The mercury-based one you see here relies on the fact that mercury expands at a predictable rate with temperature. The scale of the thermometer measures the amount of expansion. Temperature Scales Water molecules in ice link together to form an openspaced structure. The open pockets in the structure are what makes ice less dense than water, which is why ice floats on water. To be sure you interpret this correctly, answer this: What s inside the open pockets? Water molecules in ice link together to form an openspaced structure. The open pockets in the structure are what makes ice less dense than water, which is why ice floats on water. To be sure you interpret this correctly, answer this: What s inside the open pockets? 1. Air 2. Water vapor 3. Nothing 1. Air 2. Water vapor 3. Nothing 1

2 Check yourself 1. What was the precise temperature at the bottom of Lake Michigan, where the water is deep and winters long, on New Year's Eve in 1901? Would a thermometer wrapped in a blanket be warmer than one left in the open? Temperature and KE Transmission of Heat Which is Colder? Heat passes from warmer objects to cooler objects until it comes to a state of equilibrium Sensations of hot and cold have to do with direction and speed of energy transfer. Hot and cold are sensations rather than temperatures. Heat transfer Wood Iron Conduction- Direct contact. Why does tile or the metal feel cooler than rug? Substances that do not transfer heat readily are called insulators. Which is a better insulator, iron or wood? Why? 2

3 States of Matter Atoms of matter are constantly in motion. If vibrations increase (thru heat) matter expands and may fall apart Solid>>Liquid>>Gas Occupies a definite volume-takes volume of container-does not have specific volume The Calorie: A unit of energy 1 calorie is defined as the amount of heat to raise 1 gram of water by 1 degree Celsius. In 1880 s James Prescott joule experimentaly determined that 1 cal=4.186 Joules The unit to label foods I really a kilocalorie,written as Calorie Specific heat Capacity The specific heat capacity of any substance is defined as the quantity of heat required to change the temperature of a unit mass of the substance by 1 degree. Specific Heat of Cal/gr/C Joule/kg/C Water Aluminum A gram of water requires 1 calorie of energy to raise its temperature 1 Celsius degree. It takes only about one-eighth as much energy to raise the temperature of a gram of iron by the same amount. Water absorbs more heat than iron for the same change in temperature Copper wood Check yourself Which has a higher specific heat capacity, water or sand? Because water has a high specific heat capacity and is transparent, it takes more energy to warm the water than to warm the land. Solar energy incident on the land is concentrated at the surface, but that hitting the water extends beneath the surface and so is diluted. Heat Transfer How well a solid object conducts heat depends on the bonding within its atomic or molecular structure. Solids built of atoms that have one or more loose outer electrons conduct heat (and electricity) well. Metals have the loosest outer electrons, which are free to carry energy by collisions throughout the metal. They are excellent conductors of heat and electricity for this reason. Silver is the best, copper is next, and, among the common metals, aluminum and then iron are next in order. Wool, wood, straw, paper, cork, and Styrofoam, on the other hand, are poor conductors of heat. The outer electrons in the atoms of these materials are firmly attached. Poor conductors are called insulators. 3

4 Heat Transfer during change of state: soli>>liquid>>gas Change of State: Solid>>Liquid Heat of Fusion The amount of energy required to change a unit mass of any substance from solid to liquid (and vice versa) is called the latent heat of fusion for the substance. (The word latent reminds us that this is thermal energy hidden from the thermometer.) For water, we have seen this is 80 calories per gram (335 joules per gram). Heat of Vaporization Boiling The amount of energy required to change any substance from liquid to gas (and vice versa) is called the latent heat of vaporization for the substance. For water this is a whopping 540 calories per gram (2255 joules per gram). It so happens that these relatively high values are due to the strong forces between water molecules of hydrogen bonds. Pressure Cooker States of Matter Atoms of matter are constantly in motion. If vibrations increase (thru heat) matter expands and may fall apart Solid>>Liquid>>Gas 4

5 Energy and Changes of Phase Boiling and freezing Bubbles in the liquid can form only when the pressure of the vapor within the bubbles is great enough to resist the pressure of the surrounding liquid. At atmospheric P water boils at 100 C and freezes at 0C. A graph showing the energy involved in the heating and the changes of phase of 1 g of H 2 O To make the numbers simple consider a 1-gram piece of ice at a temperature of 50 C A thermometer in the container reveals a slow increase in temperature up to 0 CRather than getting warmer, the ice begins to melt. In order for the whole gram of ice to melt, 80 calories (335 joules) are absorbed by the ice, not even raising its temperature a fraction of a degree. Only when all the ice melts will each additional calorie (4.18 joules) absorbed by the water increase its temperature by 1 C until the boiling temperature, 100 C, is reached. Check yourself 1. How much energy is transferred when a gram of steam at 100 C condenses to water at 100 C? 2. How much energy is transferred when a gram of boiling water at 100 C cools to ice water at 0 C? 3. How much energy is transferred when a gram of ice water at 0 C freezes to ice at 0 C? 4. How much energy is transferred when a gram of steam at 100 C turns to ice at 0 C? Change of Phase-Evaporation Liquid-->Gas The temperature of any substance is related to the average kinetic energy of its particles. Molecules in liquid water have a wide variety of speeds, moving about in all directions and bumping into one another. At any moment some move at very high speeds while others move hardly at all. Molecules about to be propelled out of the liquid are the gainers, while the losers of energy remain in the liquid. Thus the average kinetic energy of the molecules remaining in the liquid is lowered. Evaporation is a cooling process. (Sweat) 5

6 Change of Phase- Condensation Opposite of Evaporation. Gas-->Liquid. Molecules near surface of liquid absorb KE. Steam burning is more damaging than boiling water since steam gives up more energy at 100 C as it condenses to water. Condensation Example-Step out of shower. Cooler because of evaporation. Go back in shower and it feels warmer. Also humid days Low T: Liquid N Adiabatic 6

### 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

### HNRS 227 Fall 2008 Chapter 4. Do You Remember These? iclicker Question. iclicker Question. iclicker Question. iclicker Question

HNRS 227 Fall 2008 Chapter 4 Heat and Temperature presented by Prof. Geller Do You Remember These? Units of length, mass and time, and metric Prefixes Density and its units The Scientific Method Speed,

### Kinetic Molecular Theory. A theory is a collection of ideas that attempts to explain certain phenomena.

Kinetic Molecular Theory A theory is a collection of ideas that attempts to explain certain phenomena. A law is a statement of specific relationships or conditions in nature. After centuries of questioning

### 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

### Temperature Scales. temperature scales Celsius Fahrenheit Kelvin

Ch. 10-11 Concept Ch. 10 #1, 3, 7, 8, 9, 11 Ch11, # 3, 6, 11 Problems Ch10 # 3, 5, 11, 17, 21, 24, 25, 29, 33, 37, 39, 43, 47, 59 Problems: CH 11 # 1, 2, 3a, 4, 5, 6, 9, 13, 15, 22, 25, 27, 28, 35 Temperature

### Chapter 21: Temperature, Heat & Expansion. Review from the Video:

Chapter 21: Temperature, Heat & Expansion Review from the Video: Temperature is the average kinetic energy of one molecule Heat is energy in motion (flows from hot to cold) Thermal energy is the total

### 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

### Page 1. Name:

Name: 1) Which process requires the addition of energy to water? A) vaporization of water B) condensation of water C) freezing of water D) cooling of water 2) According to the Earth Science Reference Tables,

### Chapter 15 Temperature, Heat, and Expansion

Chapter 15 Temperature, Heat, and Expansion Although the temperature of these sparks exceeds 2000ºC, the heat they impart when striking my skin is very small. Temperature and heat are different concepts.

### PARADISE VALLEY COMMUNITY COLLEGE PHYSICS 101 - INTRODUCTION TO PHYSICS LABORATORY. Calorimetry

PARADISE VALLEY COMMUNITY COLLEGE PHYSICS 101 - INTRODUCTION TO PHYSICS LABORATORY Calorimetry Equipment Needed: Large styrofoam cup, thermometer, hot water, cold water, ice, beaker, graduated cylinder,

### Specific Heat Capacity and Latent Heat Mixed Questions

Specific Heat Capacity and Latent Heat Mixed Questions 1. 12 000 J of heat energy raises the temperature of a 2kg block of a metal from 20 0 C to 30 0 C. What is the specific heat capacity of the metal?

### 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

### Test Bank - Chapter 2 Multiple Choice

Test Bank - Chapter 2 The questions in the test bank cover the concepts from the lessons in Chapter 2. Select questions from any of the categories that match the content you covered with students. The

### 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

### Chapter 10 Study Questions

Chapter 10 Study Questions Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. Which of the following temperatures is the lowest? a. 100ºC c.

### Chemistry 51 Chapter 2 ENERGY & HEAT

ENERGY & HEAT Energy is defined as the capacity of matter to do work. There are two types of energy: 1. Potential (stored) 2. Kinetic (moving) Energy possesses many forms (chemical, electrical, thermal,

### Temperature and. Chapter 5: Temperature and Heat. Thermometer. Bimetallic Strip and Thermal Expansion. Temperature Scales Celsius, Kelvin, Fahrenheit

Temperature Chapter 5 Chapter 5: Temperature and Heat Temperature and Homework: All questions Heat on the Multiple- Choice and the odd-numbered questions on Exercises sections at the end of the chapter.

### Copper, Zinc and Brass (an alloy of Cu and Zn) have very similar specific heat capacities. Why should this be so?

Thermal Properties 1. Specific Heat Capacity The heat capacity or thermal capacity of a body is a measure of how much thermal energy is required to raise its temperature by 1K (1 C). This will depend on

### Physics 142: Lecture 10 Today s Agenda. Review: Specific Heat. Review: Units of Heat. Review: Internal Energy of Ideal Gas

Physics 142: Lecture 10 Today s Agenda Heat: Phase Change and Latent Heat Heat Transfer (time permitting) Examples Suggested problems for CH11: 23, 46, 49, 0, 1, 78 Review: Internal Energy of Ideal Gas

### 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

### 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

### Physics 101: Lecture 25 Heat

Final Physics 101: Lecture 25 Heat Today s lecture will cover Textbook Chapter 14.1-14.5 Physics 101: Lecture 25, Pg 1 Internal Energy Energy of all molecules including Random motion of individual molecules»

### 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

### Latent Heat Calculations

Latent Heat Calculations What heat quantities are needed to change a substance from a liquid to a gas? How much energy is needed to melt a solid to a liquid? Is it the same for each substance? Let s look

### 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

### Kinetic Energy, Heat, and Temperature

7.3 Kinetic Energy, Heat, and Temperature Key Question: What is the relationship between kinetic energy and temperature of a substance? A book on a table might be sitting still, but all the particles that

### THERMOCHEMISTRY & DEFINITIONS

THERMOCHEMISTRY & DEFINITIONS Thermochemistry is the study of the study of relationships between chemistry and energy. All chemical changes and many physical changes involve exchange of energy with the

### 3.3 Phase Changes Charactaristics of Phase Changes phase change

When at least two states of the same substance are present, scientists describe each different state as a phase. A phase change is the reversible physical change that occurs when a substance changes from

### Chapter 16 Heat Transfer

Chapter 16 Heat Transfer Conduction Convection Radiation John Suchocki demonstrates the low conductivity of red-hot coals with his bare feet. 1 Three different ways of heat transmission Heat transfers

### HNRS 227 Lecture 5 and 6 Chapter 4 and Chapter 5. Heat and Temperature Wave Motion and Sound presented by Prof. Geller

HNRS 227 Lecture 5 and 6 Chapter 4 and Chapter 5 Heat and Temperature Wave Motion and Sound presented by Prof. Geller Recall from Chapters 1, 2, 3 Units of length, mass and time, and metric Prefixes Density

### state and explain how the internal energy and the absolute (kelvin) temperature are related....

6 N08/4/PHYSI/SP2/ENG/TZ0/XX+ A2. This question is about ideal gases. (a) State what is meant by an ideal gas....... For an ideal gas define internal energy. state and explain how the internal energy and

### Temperature & Heat. Overview

Temperature & Heat Overview Temperature vs Heat What is temperature (degrees)? A measure of the average kinetic energy of the particles in an object What is heat (joules)? That energy transferred between

### Unit 2 Lesson 3 Thermal Energy and Heat Essential Question: What is the relationship between heat and temperature?

Big Idea: Energy exits in different forms and can change from one form to another, but energy is always conserved. Unit 2 Lesson 3 Thermal Energy and Heat Essential Question: What is the relationship between

### Chapter 4: Transfer of Thermal Energy

Chapter 4: Transfer of Thermal Energy Goals of Period 4 Section 4.1: To define temperature and thermal energy Section 4.2: To discuss three methods of thermal energy transfer. Section 4.3: To describe

### Chapter 5: Temperature and Heat

Chapter 5 Chapter 5: Temperature and Heat Temperature and Heat Homework: All questions on the Multiple- Choice and the odd-numbered questions on Exercises sections at the end of the chapter. Temperature

### 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

### Calorimetry - Specific Heat and Latent Heat

Chapter 3 Calorimetry - Specific Heat and Latent Heat Name: Lab Partner: Section: 3.1 Purpose The purpose of this experiment is to study the relationship between heat and temperature. Calorimetry will

### Name Chemistry / / Melting/Freezing/Boiling & Condensing

Name Chemistry / / Melting/Freezing/Boiling & Condensing As a substance melts, freezes, boils or condenses, heat is either absorbed or released. But, as this change in state occurs, there is no change

### 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

### 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,

### Energy. Work. Potential Energy. Kinetic Energy. Learning Check 2.1. Energy. Energy. makes objects move. makes things stop. is needed to do work.

Chapter 2 Energy and Matter Energy 2.1 Energy Energy makes objects move. makes things stop. is needed to do work. 1 2 Work Potential Energy Work is done when you climb. you lift a bag of groceries. you

### Chapter 3 mastery check

1. Each water molecules is capable of forming a. one hydrogen bond b. three hydrogen bonds c. four hydrogen bonds d. two covalent bonds and two hydrogen bonds e. four polar covalent bonds 2. The polar

### 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

### Calorimetry: Determining the Heat of Fusion of Ice and the Heat of Vaporization of Liquid Nitrogen - Chemistry I Acc

Calorimetry: Determining the Heat of Fusion of Ice and the Heat of Vaporization of Liquid Nitrogen - Chemistry I Acc O B J E C T I V E 1. Using a simple calorimeter, Determine the heat of fusion of ice

### Energy in Thermal Processes: The First Law of Thermodynamics

Energy in Thermal Processes: The First Law of Thermodynamics 1. An insulated container half full of room temperature water is shaken vigorously for two minutes. What happens to the temperature of the water?

### Temperature and Heat Welcome to Thermodynamics

Temperature and Heat Welcome to Thermodynamics (or welcome to heat transfer) Up to now: mass, length, time, current The fourth quantity in physics: Temperature and related another form of energy, HEAT

### Instruction Manual and Experiment Guide F. Basic Calorimetry Set TD-8557A

Instruction Manual and Experiment Guide 012-03060F Basic Calorimetry Set TD-8557A Al Cu W Table of Contents Introduction......................................................................... 1 Notes

### Chapter 17. Quantity of Heat. A PowerPoint Presentation by Paul E. Tippens, Professor of Physics Southern Polytechnic State University

Chapter 17. Quantity of Heat A PowerPoint Presentation by Paul E. Tippens, Professor of Physics Southern Polytechnic State University 2007 Photo Vol. 05 Photodisk/Getty FOUNDRY: It requires about 289 Joules

### 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

### Assessment Schedule 2012: Physics: Demonstrate understanding of aspects of heat (90939)

NCEA Level 1 Physics (90939) 2012 page 1 of 6 Assessment Schedule 2012: Physics: Demonstrate understanding of aspects of heat (90939) Assessment Criteria ONE (a)(i) States the term condensation. States

### Q1. The diagram shows part of a solar water heater. Water circulating through the solar panel is heated by the Sun.

Q. The diagram shows part of a solar water heater. Water circulating through the solar panel is heated by the Sun. (i) Complete the following sentence. Heat energy is transferred from the Sun to the solar

### L A T E N T H E A T O F F U S I O N

Class Date Name Partner(s) L A T E N T H E A T O F F U S I O N Materials LoggerPro Software and Real Time Physics Thermodynamics Experiment Files Stainless Steel Temperature Probes (2) Styrofoam Cup Film

### Temperature and Heat. Chapter 17. PowerPoint Lectures for University Physics, Thirteenth Edition Hugh D. Young and Roger A.

Chapter 17 Temperature and Heat PowerPoint Lectures for University Physics, Thirteenth Edition Hugh D. Young and Roger A. Freedman Lectures by Wayne Anderson Copyright 2012 Pearson Education Inc. Goals

### Internal energy. The internal (total) energy for an ideal gas is the total kinetic energy of the atoms/particles in a gas.

Internal energy The internal (total) energy for an ideal gas is the total kinetic energy of the atoms/particles in a gas. For a non-ideal gas: the internal energy is due to kinetic and potential energy

### 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

### LESSON CLUSTER 7 Explaining Melting and Solidifying

LESSON CLUSTER 7 Explaining Melting and Solidifying Lesson 7.1: Melting Ice and Freezing Water Do you remember the first experiment you did in this unit? It was an ice melting race. You learned then about

### PHYSICS 220 LAB #9: CALORIMETRY

Name: Partners: PHYSICS 220 LAB #9: CALORIMETRY If you pour cold cream into a hot cup of coffee, the mixture comes to an intermediate equilibrium temperature. If you put a piece of ice in a glass of water,

### 2. Length - linear measure of distance (scalar quantity with magnitude only) a. length units m 1 m = 100 cm; 1 km = 1000 m

I. Review of Fundamental Physics Physical Properties and Principles A. Fundamental (Measurable) Physical Quantities 1. Mass - a measure of the amount of matter contained in a given quantity of material

### Physics Final Exam Chapter 13 Review

Physics 1401 - Final Exam Chapter 13 Review 11. The coefficient of linear expansion of steel is 12 10 6 /C. A railroad track is made of individual rails of steel 1.0 km in length. By what length would

### thermo practice test

Name: ate: 1. If only the respective tempreatures of two objects are known, what additional information can be determined?. how much heat the objects contain 3. ase your answer(s) to the following question(s)

### Calculating Work. Thermodynamics. Isobaric Process. Isochoric (isovolumetric) Work from Graph: Example 1 2/27/2012. Chapter 15

Pressure (X105 N/m2) Pressure (X105 N/m2) 2/27/2012 Thermodynamics Chapter 15 Calculating Work Work = area under Pressure vs. Volume graph W = Fd F = PA W=PAd W = P V Calculus link V 2 W = - p dv V 1 Isochoric

Name: Class: Date: Grade 11A Science Related Reading/Physics Conduction, Convention & Radiation Physics Gr11A Pre Reading Activity Using prior knowledge, write the definition for each vocabulary term.

### What is Energy? What is the relationship between energy and work?

What is Energy? What is the relationship between energy and work? Compare kinetic and potential energy What are the different types of energy? What is energy? Energy is the ability to do work. Great, but

### 2.0 Heat affects matter in different ways

2.0 Heat affects matter in different ways 2.1 States of Matter and The Particle Model of Matter Matter is made up of tiny particles and exists in three states: solid, liquid and gas. The Particle Model

### LESSON CLUSTER 1 States of Water

LESSON CLUSTER 1 States of Water Lesson 1.1: Solid Water and Liquid Water You certainly know about liquid water. That s what you drink and take showers in. But have you seen any solid water around recently?

### 1 Btu = kcal = 1055 J.

Heat Problems. How much heat in joules) is required to raise the temperature of 30.0 kg of water from C to 9 C?. To what temperature will 7700 J of heat raise 3.0 kg of water that is initially at 0.0 C?

### Temperature and Energy. Temperature and Energy, continued. Visual Concept: Measuring Temperature. Temperature Scales. Temperature Scales, continued

Temperature and Energy What does temperature have to do with energy? The temperature of a substance is proportional to the average kinetic energy of the substance s s particles. temperature: a measure

### Chapter 16 Temperature and Heat

The determination of temperature has long been recognized as a problem of the greatest importance in physical science. It has accordingly been made a subject of most careful attention, and, especially

### Chapter 3 Assessment. Name: Class: Date: ID: A. Multiple Choice Identify the choice that best completes the statement or answers the question.

Name: Class: _ Date: _ ID: A Chapter 3 Assessment Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which state of matter has a definite volume but a variable

### Physics Notes Class 11 CHAPTER 11 THERMAL PROPERTIES OF MATTER

1 P a g e Physics Notes Class 11 CHAPTER 11 THERMAL PROPERTIES OF MATTER The branch dealing with measurement of temperature is called thremometry and the devices used to measure temperature are called

### 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

### Temperature and Heat. How to Measure Temperature? Temperature and Heat. Temperature, Heat, and Expansion. Thermal Conductivity

Temperature and Heat How to Measure Temperature? Fahrenheit (US) after G.D. Fahrenheit 32 F = freezing 212 F = boiling Celsius (rest of world) after A. Celsius 0 C = freezing 100 C = boiling C = 5/9 (F

Chapter 2 Student Reading Atoms and molecules are in motion We warm things up and cool things down all the time, but we usually don t think much about what s really happening. If you put a room-temperature

### Final Exam Review Questions PHY Final Chapters

Final Exam Review Questions PHY 2425 - Final Chapters Section: 17 1 Topic: Thermal Equilibrium and Temperature Type: Numerical 12 A temperature of 14ºF is equivalent to A) 10ºC B) 7.77ºC C) 25.5ºC D) 26.7ºC

### Practice Test. 4) The planet Earth loses heat mainly by A) conduction. B) convection. C) radiation. D) all of these Answer: C

Practice Test 1) Increase the pressure in a container of oxygen gas while keeping the temperature constant and you increase the A) molecular speed. B) molecular kinetic energy. C) Choice A and choice B

### HEAT OF FUSION MECHANICAL EQUIVALENT OF HEAT AND PART A. HEAT OF FUSION

HEAT OF FUSION AND MECHANICAL EQUIVALENT OF HEAT CAUTION: Please handle thermometers gently. Broken mercury-filled thermometers should be taken to Rm. B-31 for disposal as mercury is very toxic. If a red-liquid

### SAM Teachers Guide Heat and Temperature

SAM Teachers Guide Heat and Temperature Overview Students learn that temperature measures average kinetic energy, and heat is the transfer of energy from hot systems to cold systems. They consider what

### HEAT. Heat is measured in Joules, (J). Heat is a form of Energy and can do work. Expansion happens when objects get hot.

HEAT Heat is measured in Joules, (J). Heat is a form of Energy and can do work. Expansion happens when objects get hot. Contraction happens when objects get cold. Advantages: Thermometers use expanding

### 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

### 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:

### Heat and Temperature practice questions SOLUTIONS

Heat and Temperature practice questions SOLUTIONS 1. Poor Pluto. One day you're the ninth planet. The next day your the first dwarf planet. To help Pluto with obvious problems of self esteem, we have invented

Convection, Conduction & Radiation There are three basic ways in which heat is transferred: convection, conduction and radiation. In gases and liquids, heat is usually transferred by convection, in which

### 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,

### Problems of Chapter 2

Section 2.1 Heat and Internal Energy Problems of Chapter 2 1- On his honeymoon James Joule traveled from England to Switzerland. He attempted to verify his idea of the interconvertibility of mechanical

### Introduction to Chapter 26

9 Heating and Cooling Introduction to Chapter 26 In this chapter, you will learn how heat and temperature are measured. Many people believe that heat and temperature are the same thing, but these two properties

### PHYS 1020 Final Exam. Seating (from exam listing on Aurora) Brown Gym. Gold Gym

PHYS 1020 Final Exam Monday, December 17, 6-9 pm The whole course 30 multiple choice questions Formula sheet provided Seating (from exam listing on Aurora) Brown Gym A - SIM Gold Gym SIN - Z 27 Week of

### 5. Which temperature is equal to +20 K? 1) 253ºC 2) 293ºC 3) 253 C 4) 293 C

1. The average kinetic energy of water molecules increases when 1) H 2 O(s) changes to H 2 O( ) at 0ºC 3) H 2 O( ) at 10ºC changes to H 2 O( ) at 20ºC 2) H 2 O( ) changes to H 2 O(s) at 0ºC 4) H 2 O( )

### Temperature and Heat. Chapter 17. PowerPoint Lectures for University Physics, Twelfth Edition Hugh D. Young and Roger A. Freedman

Chapter 17 Temperature and Heat PowerPoint Lectures for University Physics, Twelfth Edition Hugh D. Young and Roger A. Freedman Lectures by James Pazun Modified by P. Lam 6_17_2012 Topics for Chapter 17

### Energy Changes in Chemical Reactions. System loses heat (negative); gains heat (positive) Describe the difference between the two.

Energy Changes in Chemical Reactions Most reactions give off or absorb energy Energy is the capacity to do work or supply heat. Heat: transfer of thermal (kinetic) energy between two systems at different

### 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.

### What Is Heat? What Is Heat?

What Is Heat? Paul shivered inside the wood cabin. It was cold outside, and inside the cabin it wasn t much warmer. Paul could hear the rain beating down on the roof. Every few minutes there would be a

### Example: orange juice from frozen concentrate.

Dilution: a process in which the concentration (molarity) of a solution is lowered. The amount of solute (atoms, moles, grams, etc.) remains the same, but the volume is increased by adding more solvent.

### The Sun and Water Cycle

reflect Have you ever jumped in a puddle or played in the rain? If so, you know you can get very wet. What you may not know is that a dinosaur could have walked through that same water millions of years

### Version PREVIEW Heat Chap. 11 sizemore (13756) 1

Version PREVIEW Heat Chap. 11 sizemore (13756) 1 This print-out should have 25 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. Discharge

### Thermodynamics is the study of heat. It s what comes into play when you drop an ice cube

Chapter 12 You re Getting Warm: Thermodynamics In This Chapter Converting between temperature scales Working with linear expansion Calculating volume expansion Using heat capacities Understanding latent

### Thermal Energy. Write down two things you do to make yourself feel warmer.

chapter 36 section 2 Heat Thermal Energy Before You Read Write down two things you do to make yourself feel warmer. What You ll Learn compare thermal energy and heat three ways heat moves what insulators

### Understanding Solar Energy Teacher Page

Understanding Solar Energy Teacher Page Student Objective The student: will be able to calculate the calorie heat gain for several different containers given containers of several different materials will

### Chapter 17 States of Matter

Chapter 17 States of Matter Section 17.1 Solids, Liquids, and Gases Terms: States of matter Kinetic Theory of Matter Crystal Plasma Thermal Expansion After swimming on a hot day, Eli was having a refreshing