Solution and Answer Guide for Lab Exercises in Section 1 of MindTap: Silberstein/Obrzut, Refrigeration & Air Conditioning Technology, 10e ©2026 MindTap;
Section 1: The Theory of Heat. Introduction, Units: 1-3
Solution and Answer Guide for Lab
Exercises in Section 1 of MindTap
SILBERSTEIN /OBRZUT, REFRIGERATION & AIR CONDITIONING TECHNOLOGY , 10E ©2026 MINDTAP;
SECTION 1: THE THEORY OF HEAT. INTRODUCTION , UNITS: 1-3
TABLE OF CONTENTS
Unit 1 Lab Exercises.....................................................................................................2
Temperature Conversions: Exercise HCC-1 Completed Temperature Conversion Chart........................2
Temperature Conversions: Exercise HCC-1 Answers to Questions..........................................................2
The British Thermal Unit: Exercise HCC-2 Answers to Questions..........................................................3
Heat Transfer by Conduction: Exercise HCC-3 Answers to Questions....................................................4
Unit 2 Lab Exercises.....................................................................................................5
Specific Gravity: Exercise HCC-4 Completed Chart................................................................................5
Specific Gravity: Exercise HCC-4 Answers to Questions.........................................................................5
Gas Laws: Exercise HCC-5 Completed Chart...........................................................................................6
Gas Laws: Exercise HCC-5 Answers to Questions...................................................................................6
Work, Power, and Heat Energy: Exercise HCC-6 Completed Chart........................................................7
Work, Power, and Heat Energy: Exercise HCC-6 Answers to Questions.................................................7
Unit 3 Lab Exercises.....................................................................................................8
Refrigeration System Components and Their Functions: Exercise RSC-1 Answers to Questions...........8
Refrigerant Familiarization: Exercise REF-1 Completed Chart................................................................ 9
Refrigerant Familiarization: Exercise REF-1 Answers to Questions......................................................10
Refrigerant Pressure/Temperature Relationships: Exercise REF-2 Answers to Lab Activities..............10
Refrigerant Pressure/Temperature Relationships: Exercise REF-2 Answers to Questions.....................11
UNIT 1 LAB EXERCISES
TEMPERATURE CONVERSIONS: EXERCISE HCC-1 COMPLETED
TEMPERATURE CONVERSION CHART
(Bolded values in parentheses represent the items that were to be filled in by the student.)
Fahrenheit Celsius Rankine Kelvin
© 2026 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible 1
website, in whole or in part.
,Solution and Answer Guide for Lab Exercises in Section 1 of MindTap: Silberstein/Obrzut, Refrigeration & Air Conditioning Technology, 10e ©2026 MindTap;
Section 1: The Theory of Heat. Introduction, Units: 1-3
(−460) (−273) 0 (0)
32 (0) (492) (273)
(212) 100 (672) (373)
(140) (60) 600 (333)
(−460) (−273) (0) 0
200 (93) (660) (366)
(−360) (−218) 100 (55)
(122) 50 (582) (323)
(81) (27) (541) 300
(32) 0 (492) (273)
150 (66) (610) (339)
(−410) (−246) 50 (27)
(−40) −40 (420) (233)
−40 (−40) (420) (233)
212 (100) (672) (373)
(212) (100) (672) 373
(−460) −273 (0) (0)
(212) (100) 672 (373)
5 (−15) (465) (258)
(441) (227) (901) 500
TEMPERATURE CONVERSIONS: EXERCISE HCC-1 ANSWERS TO
QUESTIONS
1. The mathematical relationship between a Fahrenheit temperature and the equivalent Celsius
temperature is:
a. 1:1.
b. 2:1.
c. 3:1.
d. It cannot be determined, as the values are not proportional.
Answer: d
2. Which of the following temperature scales represent absolute values?
a. Celsius and Kelvin
b. Fahrenheit and Celsius
c. Kelvin and Rankine
d. Fahrenheit and Kelvin
Answer: c
3. Which of the following temperatures represents absolute zero?
a. 460°F
b. 0°C
c. 672°R
d. 273°K
Answer: a
4. Which of the following temperatures is the coldest?
a. 32°F
© 2026 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible 2
website, in whole or in part.
,Solution and Answer Guide for Lab Exercises in Section 1 of MindTap: Silberstein/Obrzut, Refrigeration & Air Conditioning Technology, 10e ©2026 MindTap;
Section 1: The Theory of Heat. Introduction, Units: 1-3
b. 672°R
c. 100°C
d. 373°K
Answer: a
5. Which of the following temperatures is the hottest?
a. 212°F
b. 492°R
c. 273°K
d. 0°C
Answer: a
6. Which of the following temperatures represent the same level of heat intensity?
a. 0°C and 0°K
b. 0°F and 0°R
c. 40°C and 40°F
d. 50°C and 50°R
Answer: c
THE BRITISH THERMAL UNIT: EXERCISE HCC-2 ANSWERS TO
QUESTIONS
1. How does the rate of temperature rise of the 8 oz water sample compare to the rate of temperature rise
of the 16 oz water sample?
a. The rate of temperature rise of the 8 oz water sample was greater than the rate of temperature rise
of the 16 oz water sample.
b. The rate of temperature rise of the 16 oz water sample was greater than the rate of temperature rise
of the 8 oz water sample.
c. The rate of temperature rise of the 8 oz water sample was the same as the rate of temperature rise
of the 16 oz water sample.
Answer: a
2. How does the amount of heat energy absorbed by the water or saltwater solution relate to the
amount of heat energy produced by the burner?
a. The amount of heat produced by the burner is greater.
b. The amount of heat absorbed by the water is greater.
c. The amount of heat absorbed by the saltwater is greater.
d. The amount of heat produced by the burner is equal to the amount of heat absorbed by the water.
Answer: a
3. With regards to this laboratory exercise, which of the following is an example of heat loss?
a. The support ring getting hot.
b. The glass beaker getting hot.
c. The air around the beaker getting hot.
d. All of the above are examples of heat losses.
Answer: d
4. Based on the results of this laboratory exercise, it can be concluded that:
a. impurities added to water will increase the rate of temperature rise of the solution.
b. impurities added to water will decrease the rate of temperature rise of the solution.
© 2026 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible 3
website, in whole or in part.
, Solution and Answer Guide for Lab Exercises in Section 1 of MindTap: Silberstein/Obrzut, Refrigeration & Air Conditioning Technology, 10e ©2026 MindTap;
Section 1: The Theory of Heat. Introduction, Units: 1-3
c. impurities added to water will neither increase nor decrease the rate of temperature rise of the
solution.
Answer: b
HEAT TRANSFER BY CONDUCTION: EXERCISE HCC-3 ANSWERS TO
QUESTIONS
1. How does the rate of temperature rise of the glass rod compare to the rate of temperature rise of the
copper tubing?
a. The rate of temperature rise of the glass rod was greater than the rate of temperature rise of the
copper tubing.
b. The rate of temperature rise of the copper tubing was greater than the rate of temperature rise of
the glass rod.
c. The rate of temperature rise of the glass rod was the same as the rate of temperature rise of the
copper tubing.
Answer: b
2. Based on this exercise and your knowledge of electron theory, what can likely be concluded about
the glass rod and the copper tubing?
a. Glass is a good conductor, while copper is a good insulator.
b. Glass is a good insulator, while copper is a good conductor.
c. Glass and copper are both good insulators.
d. Glass and copper are both good conductors.
Answer: b
3. Explain the relationship, if any, that exists between a substance being either a good conductor of
heat and electricity or a good insulator.
Answer: Substances that are good conductors of electricity also tend to be good conductors of heat.
UNIT 2 LAB EXERCISES
SPECIFIC GRAVITY: EXERCISE HCC-4 COMPLETED CHART
(Bolded values in parentheses represent the items that were to be filled in by the student.)
Substance Density Density Density Specific Substance Sink or
(lb/in3) (oz/in3) (lb/ft3) Gravity Float on
Water
A (0.7) (11.2) 1208 (19.36) (GOLD) (SINK)
B (0.036) (0.58) (62.4) 1 (WATER) N/A
C (0.317) (5.07) (548) (8.78) RED BRASS (SINK)
D 0.3218 (5.15) (556) (8.91) (COPPER) (SINK)
E (0.033) 0.5324 (57.5) (0.92) (ICE) (FLOAT)
F (0.099) (1.58) 171 (2.74) (ALUMINU (SINK)
M)
G (0.70) (11.2) (1210) 19.39 (TUNGSTEN (SINK)
)
© 2026 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible 4
website, in whole or in part.
Section 1: The Theory of Heat. Introduction, Units: 1-3
Solution and Answer Guide for Lab
Exercises in Section 1 of MindTap
SILBERSTEIN /OBRZUT, REFRIGERATION & AIR CONDITIONING TECHNOLOGY , 10E ©2026 MINDTAP;
SECTION 1: THE THEORY OF HEAT. INTRODUCTION , UNITS: 1-3
TABLE OF CONTENTS
Unit 1 Lab Exercises.....................................................................................................2
Temperature Conversions: Exercise HCC-1 Completed Temperature Conversion Chart........................2
Temperature Conversions: Exercise HCC-1 Answers to Questions..........................................................2
The British Thermal Unit: Exercise HCC-2 Answers to Questions..........................................................3
Heat Transfer by Conduction: Exercise HCC-3 Answers to Questions....................................................4
Unit 2 Lab Exercises.....................................................................................................5
Specific Gravity: Exercise HCC-4 Completed Chart................................................................................5
Specific Gravity: Exercise HCC-4 Answers to Questions.........................................................................5
Gas Laws: Exercise HCC-5 Completed Chart...........................................................................................6
Gas Laws: Exercise HCC-5 Answers to Questions...................................................................................6
Work, Power, and Heat Energy: Exercise HCC-6 Completed Chart........................................................7
Work, Power, and Heat Energy: Exercise HCC-6 Answers to Questions.................................................7
Unit 3 Lab Exercises.....................................................................................................8
Refrigeration System Components and Their Functions: Exercise RSC-1 Answers to Questions...........8
Refrigerant Familiarization: Exercise REF-1 Completed Chart................................................................ 9
Refrigerant Familiarization: Exercise REF-1 Answers to Questions......................................................10
Refrigerant Pressure/Temperature Relationships: Exercise REF-2 Answers to Lab Activities..............10
Refrigerant Pressure/Temperature Relationships: Exercise REF-2 Answers to Questions.....................11
UNIT 1 LAB EXERCISES
TEMPERATURE CONVERSIONS: EXERCISE HCC-1 COMPLETED
TEMPERATURE CONVERSION CHART
(Bolded values in parentheses represent the items that were to be filled in by the student.)
Fahrenheit Celsius Rankine Kelvin
© 2026 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible 1
website, in whole or in part.
,Solution and Answer Guide for Lab Exercises in Section 1 of MindTap: Silberstein/Obrzut, Refrigeration & Air Conditioning Technology, 10e ©2026 MindTap;
Section 1: The Theory of Heat. Introduction, Units: 1-3
(−460) (−273) 0 (0)
32 (0) (492) (273)
(212) 100 (672) (373)
(140) (60) 600 (333)
(−460) (−273) (0) 0
200 (93) (660) (366)
(−360) (−218) 100 (55)
(122) 50 (582) (323)
(81) (27) (541) 300
(32) 0 (492) (273)
150 (66) (610) (339)
(−410) (−246) 50 (27)
(−40) −40 (420) (233)
−40 (−40) (420) (233)
212 (100) (672) (373)
(212) (100) (672) 373
(−460) −273 (0) (0)
(212) (100) 672 (373)
5 (−15) (465) (258)
(441) (227) (901) 500
TEMPERATURE CONVERSIONS: EXERCISE HCC-1 ANSWERS TO
QUESTIONS
1. The mathematical relationship between a Fahrenheit temperature and the equivalent Celsius
temperature is:
a. 1:1.
b. 2:1.
c. 3:1.
d. It cannot be determined, as the values are not proportional.
Answer: d
2. Which of the following temperature scales represent absolute values?
a. Celsius and Kelvin
b. Fahrenheit and Celsius
c. Kelvin and Rankine
d. Fahrenheit and Kelvin
Answer: c
3. Which of the following temperatures represents absolute zero?
a. 460°F
b. 0°C
c. 672°R
d. 273°K
Answer: a
4. Which of the following temperatures is the coldest?
a. 32°F
© 2026 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible 2
website, in whole or in part.
,Solution and Answer Guide for Lab Exercises in Section 1 of MindTap: Silberstein/Obrzut, Refrigeration & Air Conditioning Technology, 10e ©2026 MindTap;
Section 1: The Theory of Heat. Introduction, Units: 1-3
b. 672°R
c. 100°C
d. 373°K
Answer: a
5. Which of the following temperatures is the hottest?
a. 212°F
b. 492°R
c. 273°K
d. 0°C
Answer: a
6. Which of the following temperatures represent the same level of heat intensity?
a. 0°C and 0°K
b. 0°F and 0°R
c. 40°C and 40°F
d. 50°C and 50°R
Answer: c
THE BRITISH THERMAL UNIT: EXERCISE HCC-2 ANSWERS TO
QUESTIONS
1. How does the rate of temperature rise of the 8 oz water sample compare to the rate of temperature rise
of the 16 oz water sample?
a. The rate of temperature rise of the 8 oz water sample was greater than the rate of temperature rise
of the 16 oz water sample.
b. The rate of temperature rise of the 16 oz water sample was greater than the rate of temperature rise
of the 8 oz water sample.
c. The rate of temperature rise of the 8 oz water sample was the same as the rate of temperature rise
of the 16 oz water sample.
Answer: a
2. How does the amount of heat energy absorbed by the water or saltwater solution relate to the
amount of heat energy produced by the burner?
a. The amount of heat produced by the burner is greater.
b. The amount of heat absorbed by the water is greater.
c. The amount of heat absorbed by the saltwater is greater.
d. The amount of heat produced by the burner is equal to the amount of heat absorbed by the water.
Answer: a
3. With regards to this laboratory exercise, which of the following is an example of heat loss?
a. The support ring getting hot.
b. The glass beaker getting hot.
c. The air around the beaker getting hot.
d. All of the above are examples of heat losses.
Answer: d
4. Based on the results of this laboratory exercise, it can be concluded that:
a. impurities added to water will increase the rate of temperature rise of the solution.
b. impurities added to water will decrease the rate of temperature rise of the solution.
© 2026 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible 3
website, in whole or in part.
, Solution and Answer Guide for Lab Exercises in Section 1 of MindTap: Silberstein/Obrzut, Refrigeration & Air Conditioning Technology, 10e ©2026 MindTap;
Section 1: The Theory of Heat. Introduction, Units: 1-3
c. impurities added to water will neither increase nor decrease the rate of temperature rise of the
solution.
Answer: b
HEAT TRANSFER BY CONDUCTION: EXERCISE HCC-3 ANSWERS TO
QUESTIONS
1. How does the rate of temperature rise of the glass rod compare to the rate of temperature rise of the
copper tubing?
a. The rate of temperature rise of the glass rod was greater than the rate of temperature rise of the
copper tubing.
b. The rate of temperature rise of the copper tubing was greater than the rate of temperature rise of
the glass rod.
c. The rate of temperature rise of the glass rod was the same as the rate of temperature rise of the
copper tubing.
Answer: b
2. Based on this exercise and your knowledge of electron theory, what can likely be concluded about
the glass rod and the copper tubing?
a. Glass is a good conductor, while copper is a good insulator.
b. Glass is a good insulator, while copper is a good conductor.
c. Glass and copper are both good insulators.
d. Glass and copper are both good conductors.
Answer: b
3. Explain the relationship, if any, that exists between a substance being either a good conductor of
heat and electricity or a good insulator.
Answer: Substances that are good conductors of electricity also tend to be good conductors of heat.
UNIT 2 LAB EXERCISES
SPECIFIC GRAVITY: EXERCISE HCC-4 COMPLETED CHART
(Bolded values in parentheses represent the items that were to be filled in by the student.)
Substance Density Density Density Specific Substance Sink or
(lb/in3) (oz/in3) (lb/ft3) Gravity Float on
Water
A (0.7) (11.2) 1208 (19.36) (GOLD) (SINK)
B (0.036) (0.58) (62.4) 1 (WATER) N/A
C (0.317) (5.07) (548) (8.78) RED BRASS (SINK)
D 0.3218 (5.15) (556) (8.91) (COPPER) (SINK)
E (0.033) 0.5324 (57.5) (0.92) (ICE) (FLOAT)
F (0.099) (1.58) 171 (2.74) (ALUMINU (SINK)
M)
G (0.70) (11.2) (1210) 19.39 (TUNGSTEN (SINK)
)
© 2026 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible 4
website, in whole or in part.
