Suppose That the Department of Energy Develops a New Reversible

question 2

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 thermodynamic pump.What is its thermal efficiency when operated as a thermodynamic engine doing work?

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

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