Question: Q 3 : A heat engine receives heat from a source at 1 5 0 0 K at a rate of 6 0 0 k

Q3: A heat engine receives heat from a source at 1500 K at a rate of 600kJs and rejects the waste heat to a sink 300 K . If the power output of the engine is 400 kW , the second-law efficiency of this heat engine is
42%
53%
83%
67%
80%
None of the above
Q 3 : A heat engine receives heat from a source

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