University Physics (14th Edition)
14th Edition
ISBN: 9780133969290
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
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Textbook Question
Chapter 20, Problem 20.38P
What is the thermal efficiency of an engine that operates by taking n moles of diatomic ideal gas through the cycle 1 → 2 → 3 → 4 → 1 shown in Fig. P20.38?
Figure P20.38
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45. N Figure P21.45 shows a cyclic process ABCDA for 1.00 mol
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1.00 X 10-3 m3 (point A in Fig. P21.45). a. What is the net
work done on the gas during the cycle? b. What is the net
amount of energy added by heat to this gas during the cycle?
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I need help solving number 11. In question 1, they say U=(3/2)PV
I found work on the gas as -3/2PV, so therefore Q should be 6/2PV but the answer key says 6PV.
Chapter 20 Solutions
University Physics (14th Edition)
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