THERMODYNAMICS: ENG APPROACH LOOSELEAF
9th Edition
ISBN: 9781266084584
Author: CENGEL
Publisher: MCG
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Textbook Question
Chapter 4.5, Problem 162FEP
A piston–cylinder device contains an ideal gas. The gas undergoes two successive cooling processes by rejecting heat to the surroundings. First the gas is cooled at constant pressure until
1. The ratio of the final volume to the initial volume of the gas is
- (a) 0.25
- (b) 0.50
- (c) 0.67
- (d) 0.75
- (e) 1.0
2. The work done on the gas by the piston is
- (a) RT1/4
- (b) cvT1/2
- (c) cpT1/2
- (d) (cv + cp)T1/4
- (e) cv(T1 + T2)/2
3. The total heat transferred from the gas is
- (a) RT1/4
- (b) cvT1/2
- (c) cpT1/2
- (d) (cv + cp)T1/4
- (e) cv(T1 + T3)/2
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Chapter 4 Solutions
THERMODYNAMICS: ENG APPROACH LOOSELEAF
Ch. 4.5 - Is the boundary work associated with...Ch. 4.5 - On a P-V diagram, what does the area under the...Ch. 4.5 - An ideal gas at a given state expands to a fixed...Ch. 4.5 - Calculate the total work, in kJ, for process 13...Ch. 4.5 - Calculate the total work, in Btu, produced by the...Ch. 4.5 - Nitrogen at an initial state of 300 K, 150 kPa,...Ch. 4.5 - The volume of 1 kg of helium in a pistoncylinder...Ch. 4.5 - A pistoncylinder device with a set of stops...Ch. 4.5 - A mass of 5 kg of saturated water vapor at 150 kPa...Ch. 4.5 - A frictionless pistoncylinder device contains 16...
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