, Solution manual for Principles of Engineering
Thermodynamics, 2nd Edition John R. Reisel
Notes
1- The file is chapter after chapter.
2- We have shown you 10 or five pages.
3- The file contains all Appendix and Excel
sheet if it exists.
4- We have all what you need, we make
update at every time. There are many
new editions waiting you.
5- If you think you purchased the wrong file
You can contact us at every time, we can
replace it with true one.
Our email:
, Chapter 1: Introduction to Thermodynamics and Energy
CHAPTER 1: INTRODUCTION TO
THERMODYNAMICS AND ENERGY
END OF CHAPTER PROBLEM SOLUTIONS
1.1) For the following systems, determine whether the system described is best modeled
as an isolated, closed, or open system:
(a) steam flowing through a turbine
(b) an incandescent light bulb
(c) a fuel pump in a moving automobile
(d) an anchor of a sunken ship resting 3000 m below the surface of the ocean
(e) the roof of a house
Solution:
(a) Open System
(b) Closed System
(c) Open System
(d) Isolated System – could be modeled as a closed system if something is being done
to it.
(e) Closed System
1.2) For the following systems, determine whether the system described is best modeled
as an isolated, closed, or open system:
(a) a tree growing in a forest
(b) a television
(c) a laptop computer
(d) the Voyager 2 spacecraft in its current state
(e) the Messenger spacecraft as it moved into orbit around Mercury
Solution:
(a) Open System
(b) Closed System
(c) Open System (considering the cooling air passing through the system)
(d) Isolated System
(e) Open System (would have been expelling mass with a rocket burn)
1
© 2022 Cengage Learning. All Rights Reserved. May not be scanned, copied, or duplicated, or posted to a publicly accessible website,
in whole or in part.
,Chapter 1: Introduction to Thermodynamics and Energy
1.3) For the following systems, determine whether the system described is best modeled
as an isolated, closed, or open system:
(a) an inflated tire
(b) a lawn sprinkler actively in use
(c) a cup filled with liquid water
(d) an engine’s radiator
(e) a rock formation 200 m below the surface of the earth
Solution:
(a) Closed System
(b) Open System
(c) Closed System, unless significant evaporation is actively occurring (which would
make it an open system)
(d) Open System
(e) Isolated System
1.4) For the following systems, determine whether the system described is best modeled
as an isolated, closed, or open system:
(a) a pump supplying water to a building
(b) a tea kettle containing boiling water
(c) an active volcano
(d) a solid gold bar placed inside a very well-insulated box
(e) a chair
Solution:
(a) Open System
(b) Open System
(c) Open System
(d) Isolated System
(e) Closed System
1.5) For the following systems, determine whether the system described is best modeled
as an isolated, closed, or open system:
(a) a pulley on an elevator
(b) a bathtub
(c) a human being
(d) a piece of metal being shaped on a lathe
(e) a comet orbiting the Sun in the Oort cloud (the cloud of inactive comets
located well beyond the orbits of the planets)
Solution:
(a) Closed System
(b) Open System if being filled or emptied. If it is just sitting as an empty bathtub, it is
a closed system.
2
© 2022 Cengage Learning. All Rights Reserved. May not be scanned, copied, or duplicated, or posted to a publicly accessible website,
in whole or in part.
, Chapter 1: Introduction to Thermodynamics and Energy
(c) Open System
(d) Open System
(e) Isolated System
1.6) Consider a closed bottle half-filled with water placed in a refrigerator. Draw
diagrams showing the most appropriate system for a thermodynamic analysis that
(a) only considers the water
(b) considers only the water and the air inside the bottle
(c) considers the water and air inside the bottle, and the bottle itself
(d) considers only the bottle and not the contents
(e) considers all the contents of the refrigerator, but not the physical refrigerator
Solution:
(a)
Air
Water
Refrigerator
(b)
Air
Water
Refrigerator
3
© 2022 Cengage Learning. All Rights Reserved. May not be scanned, copied, or duplicated, or posted to a publicly accessible website,
in whole or in part.
,Chapter 1: Introduction to Thermodynamics and Energy
(c)
Air
Water
Refrigerator
(d)
Air
Water
Refrigerator
(e)
Air
Water
Refrigerator
1.7) Consider a fire hose with water flowing through the hose and then through a nozzle
at the end of the hose. Draw diagrams showing the most appropriate system for a
thermodynamic analysis that
(a) considers only the water in the nozzle of the system
(b) considers the water flowing through the hose and the nozzle
(c) considers both the water flowing through the nozzle, and the nozzle itself
4
© 2022 Cengage Learning. All Rights Reserved. May not be scanned, copied, or duplicated, or posted to a publicly accessible website,
in whole or in part.
, Chapter 1: Introduction to Thermodynamics and Energy
Solution:
(a)
Hose
Nozzle
(b)
Hose
Nozzle
(c)
Hose
Nozzle
1.8) A basketball is about to leave a player’s hand for a shot. Draw diagrams showing
the most appropriate system for a thermodynamic analysis that
(a) considers only the air inside the basketball
(b) considers only the material making up the basketball, and not the air inside
the ball
(c) considers the basketball and the air inside
(d) considers the basketball, the air inside, and the player’s hand
(e) considers the entire arena in which the basketball is located
Solution:
(a)
5
© 2022 Cengage Learning. All Rights Reserved. May not be scanned, copied, or duplicated, or posted to a publicly accessible website,
in whole or in part.
,Chapter 1: Introduction to Thermodynamics and Energy
(b)
(c)
(d)
(e)
6
© 2022 Cengage Learning. All Rights Reserved. May not be scanned, copied, or duplicated, or posted to a publicly accessible website,
in whole or in part.
, Chapter 1: Introduction to Thermodynamics and Energy
1.9) To condense a flow of steam, liquid cooling water is sent through a pipe, and the
steam is passed over the exterior of the pipe. Draw diagrams showing the most appropriate
system for a thermodynamic analysis which
(a) considers only the water flowing through the pipe
(b) considers only the steam condensing on the exterior of the pipe
(c) considers only the pipe
(d) considers the pipe, the internal cooling water, and the external condensing
steam
Solution:
(a)
Steam
Cooling Water
(b)
Steam
Cooling Water
(c)
Steam
Cooling Water
7
© 2022 Cengage Learning. All Rights Reserved. May not be scanned, copied, or duplicated, or posted to a publicly accessible website,
in whole or in part.
, Chapter 1: Introduction to Thermodynamics and Energy
(d)
Steam
Cooling Water
1.10) Draw a schematic diagram of the place where you live. Identify any places where
mass or energy may flow into or out of the room or building.
Solution: This answer will vary with student, based on their particular home.
1.11) Draw a schematic diagram of an automobile engine. Identify any locations where
mass or energy may flow into or out of the engine.
Solution:
Fuel in Exhaust gases out
Air in Heat to surroundings
Coolant
in
Work out through
Coolant Out
crankshaft
(with heat)
1.12) Draw a schematic diagram of a desktop computer. Identify any locations where mass
or energy may flow into or out of the computer.
8
© 2022 Cengage Learning. All Rights Reserved. May not be scanned, copied, or duplicated, or posted to a publicly accessible website,
in whole or in part.
Thermodynamics, 2nd Edition John R. Reisel
Notes
1- The file is chapter after chapter.
2- We have shown you 10 or five pages.
3- The file contains all Appendix and Excel
sheet if it exists.
4- We have all what you need, we make
update at every time. There are many
new editions waiting you.
5- If you think you purchased the wrong file
You can contact us at every time, we can
replace it with true one.
Our email:
, Chapter 1: Introduction to Thermodynamics and Energy
CHAPTER 1: INTRODUCTION TO
THERMODYNAMICS AND ENERGY
END OF CHAPTER PROBLEM SOLUTIONS
1.1) For the following systems, determine whether the system described is best modeled
as an isolated, closed, or open system:
(a) steam flowing through a turbine
(b) an incandescent light bulb
(c) a fuel pump in a moving automobile
(d) an anchor of a sunken ship resting 3000 m below the surface of the ocean
(e) the roof of a house
Solution:
(a) Open System
(b) Closed System
(c) Open System
(d) Isolated System – could be modeled as a closed system if something is being done
to it.
(e) Closed System
1.2) For the following systems, determine whether the system described is best modeled
as an isolated, closed, or open system:
(a) a tree growing in a forest
(b) a television
(c) a laptop computer
(d) the Voyager 2 spacecraft in its current state
(e) the Messenger spacecraft as it moved into orbit around Mercury
Solution:
(a) Open System
(b) Closed System
(c) Open System (considering the cooling air passing through the system)
(d) Isolated System
(e) Open System (would have been expelling mass with a rocket burn)
1
© 2022 Cengage Learning. All Rights Reserved. May not be scanned, copied, or duplicated, or posted to a publicly accessible website,
in whole or in part.
,Chapter 1: Introduction to Thermodynamics and Energy
1.3) For the following systems, determine whether the system described is best modeled
as an isolated, closed, or open system:
(a) an inflated tire
(b) a lawn sprinkler actively in use
(c) a cup filled with liquid water
(d) an engine’s radiator
(e) a rock formation 200 m below the surface of the earth
Solution:
(a) Closed System
(b) Open System
(c) Closed System, unless significant evaporation is actively occurring (which would
make it an open system)
(d) Open System
(e) Isolated System
1.4) For the following systems, determine whether the system described is best modeled
as an isolated, closed, or open system:
(a) a pump supplying water to a building
(b) a tea kettle containing boiling water
(c) an active volcano
(d) a solid gold bar placed inside a very well-insulated box
(e) a chair
Solution:
(a) Open System
(b) Open System
(c) Open System
(d) Isolated System
(e) Closed System
1.5) For the following systems, determine whether the system described is best modeled
as an isolated, closed, or open system:
(a) a pulley on an elevator
(b) a bathtub
(c) a human being
(d) a piece of metal being shaped on a lathe
(e) a comet orbiting the Sun in the Oort cloud (the cloud of inactive comets
located well beyond the orbits of the planets)
Solution:
(a) Closed System
(b) Open System if being filled or emptied. If it is just sitting as an empty bathtub, it is
a closed system.
2
© 2022 Cengage Learning. All Rights Reserved. May not be scanned, copied, or duplicated, or posted to a publicly accessible website,
in whole or in part.
, Chapter 1: Introduction to Thermodynamics and Energy
(c) Open System
(d) Open System
(e) Isolated System
1.6) Consider a closed bottle half-filled with water placed in a refrigerator. Draw
diagrams showing the most appropriate system for a thermodynamic analysis that
(a) only considers the water
(b) considers only the water and the air inside the bottle
(c) considers the water and air inside the bottle, and the bottle itself
(d) considers only the bottle and not the contents
(e) considers all the contents of the refrigerator, but not the physical refrigerator
Solution:
(a)
Air
Water
Refrigerator
(b)
Air
Water
Refrigerator
3
© 2022 Cengage Learning. All Rights Reserved. May not be scanned, copied, or duplicated, or posted to a publicly accessible website,
in whole or in part.
,Chapter 1: Introduction to Thermodynamics and Energy
(c)
Air
Water
Refrigerator
(d)
Air
Water
Refrigerator
(e)
Air
Water
Refrigerator
1.7) Consider a fire hose with water flowing through the hose and then through a nozzle
at the end of the hose. Draw diagrams showing the most appropriate system for a
thermodynamic analysis that
(a) considers only the water in the nozzle of the system
(b) considers the water flowing through the hose and the nozzle
(c) considers both the water flowing through the nozzle, and the nozzle itself
4
© 2022 Cengage Learning. All Rights Reserved. May not be scanned, copied, or duplicated, or posted to a publicly accessible website,
in whole or in part.
, Chapter 1: Introduction to Thermodynamics and Energy
Solution:
(a)
Hose
Nozzle
(b)
Hose
Nozzle
(c)
Hose
Nozzle
1.8) A basketball is about to leave a player’s hand for a shot. Draw diagrams showing
the most appropriate system for a thermodynamic analysis that
(a) considers only the air inside the basketball
(b) considers only the material making up the basketball, and not the air inside
the ball
(c) considers the basketball and the air inside
(d) considers the basketball, the air inside, and the player’s hand
(e) considers the entire arena in which the basketball is located
Solution:
(a)
5
© 2022 Cengage Learning. All Rights Reserved. May not be scanned, copied, or duplicated, or posted to a publicly accessible website,
in whole or in part.
,Chapter 1: Introduction to Thermodynamics and Energy
(b)
(c)
(d)
(e)
6
© 2022 Cengage Learning. All Rights Reserved. May not be scanned, copied, or duplicated, or posted to a publicly accessible website,
in whole or in part.
, Chapter 1: Introduction to Thermodynamics and Energy
1.9) To condense a flow of steam, liquid cooling water is sent through a pipe, and the
steam is passed over the exterior of the pipe. Draw diagrams showing the most appropriate
system for a thermodynamic analysis which
(a) considers only the water flowing through the pipe
(b) considers only the steam condensing on the exterior of the pipe
(c) considers only the pipe
(d) considers the pipe, the internal cooling water, and the external condensing
steam
Solution:
(a)
Steam
Cooling Water
(b)
Steam
Cooling Water
(c)
Steam
Cooling Water
7
© 2022 Cengage Learning. All Rights Reserved. May not be scanned, copied, or duplicated, or posted to a publicly accessible website,
in whole or in part.
, Chapter 1: Introduction to Thermodynamics and Energy
(d)
Steam
Cooling Water
1.10) Draw a schematic diagram of the place where you live. Identify any places where
mass or energy may flow into or out of the room or building.
Solution: This answer will vary with student, based on their particular home.
1.11) Draw a schematic diagram of an automobile engine. Identify any locations where
mass or energy may flow into or out of the engine.
Solution:
Fuel in Exhaust gases out
Air in Heat to surroundings
Coolant
in
Work out through
Coolant Out
crankshaft
(with heat)
1.12) Draw a schematic diagram of a desktop computer. Identify any locations where mass
or energy may flow into or out of the computer.
8
© 2022 Cengage Learning. All Rights Reserved. May not be scanned, copied, or duplicated, or posted to a publicly accessible website,
in whole or in part.
