College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Chapter 16, Problem 7P
The pV diagram in Figure 16.16 shows a cycle of a heat engine that uses 0.250 mole of an ideal gas having γ = 1.40. The curved part ab of the cycle is adiabatic. The internal energy of the gas changes by the following amounts: ΔUa→b = −2800 J, ΔUb→c= −2650 J, and ΔUc→a = +5450 J. (a) Find the pressure of the gas at point a. (b) How much heat enters this gas per cycle, and at what point in the cycle does this occur? (c) How much heat leaves this gas in a cycle, and at what point in the cycle does this occur? (d) How much work does this engine do in a cycle? (e) What is the thermal efficiency of the engine?
Figure 16.16
Problem 7.
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Chapter 16 Solutions
College Physics (10th Edition)
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