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A reversible engine takes heat from a re...

A reversible engine takes heat from a reservoir at `527^(@)C` and gives out to the sink at `127^(@)C.` The engine is required to perform useful mechanical work at the rate of 750 watt. The efficiency of the engine is

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Efficiency `eta =1 - (T_(2))/(T_(1))`
or `n =1 - (400)/(800) =1/2 or eta = 50%`
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MOTION-HEAT-2 -EXERCISE-4 (LEVEL-II)
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