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mikael mikael
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9 years ago

 
A real (non-Carnot) heat engine, operating between heat reservoirs at temperatures of 580 K and 270 K, performs  4.2 kJ of net work, and rejects 8.7 kJ of heat, in a single cycle. The thermal efficiency of a Carnot heat engine, operating between the same heat reservoirs, in percent, is closest to: 
A)
 
53 
B)
 
48 
C)
 
43 
D)
 
37 
E)
 
32 
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padrepadre
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9 years ago
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mikael Author
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#2
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9 years ago
Great, thank you, physics couldn't be easier now Slight Smile
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