A heat engine performs the reversible cycle abca with 9.0 moles of an ideal gas, as shown in the figure. Path ca is an adiabatic process. The temperatures at points a and b are 300 K and 500 K, respectively. The volume at point c is 0.20 m3. The adiabatic constant of the gas is 1.60. Using the information given about the processes a. for each path calculate how much work is done by the system. b. for each path calculate the change in internal energy of the system. c. for each path calculate how much heat is absorbed by the d. calculate thermal efficiency of this engine.

A heat engine performs the reversible cycle abca with 9.0 moles of an ideal gas, as shown in the figure. Path ca is an adiabatic process. The temperatures at points a and b are 300 K and 500 K, respectively. The volume at point c is 0.20 m3. The adiabatic constant of the gas is 1.60. Using the information given about the processes a. for each path calculate how much work is done by the system. b. for each path calculate the change in internal energy of the system. c. for each path calculate how much heat is absorbed by the d. calculate thermal efficiency of this engine.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter18: Heat Engines, Entropy, And The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 16P

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Question

2. A heat engine performs the reversible cycle abca with 9.0
moles of an ideal gas, as shown in the figure. Path ca is an
adiabatic process. The temperatures at points a and b are 300
K and 500 K, respectively. The volume at point c is 0.20 m3.
The adiabatic constant of the gas is 1.60. Using the
information given about the processes
a. for each path calculate how much work is done by the
PA
300 K
500 K
9,
a
system.
b. for each path calculate the change in internal energy of
the system.
c. for each path calculate how much heat is absorbed by the system.
d. calculate thermal efficiency of this engine.
0.20 m3
V

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