A real (non-Carnot) heat engine, operating between heat reservoirs at temperatures of 630 K and 270 K, performs 3.2 kJ o

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answerhappygod
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A real (non-Carnot) heat engine, operating between heat reservoirs at temperatures of 630 K and 270 K, performs 3.2 kJ o

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A real (non-Carnot) heat engine, operating between heat
reservoirs at temperatures of 630 K and 270 K,
performs 3.2 kJ of net work and rejects 8.4 kJ
of heat in a single cycle. The thermal efficiency of this heat
engine is closest to
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