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Suppose That the Department of Energy Develops a New Reversible

Question 65

Multiple Choice

Suppose that the Department of Energy develops a new reversible engine that has a coefficient of performance (COP) of 4.0 when operated as a refrigerator and a COP of 5.0 when operated as a heat pump.What is its thermal efficiency when operated as a heat engine doing work?


A) 10%
B) 20%
C) 25%
D) 45%
E) 80%

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