Question
A steam engine takes heat from steam at 221 °C to do work. If the surrounding air at 25 °C is treated as the cold reservoir and the power of the engine is 3.50x 103 hp
find (a) the maximum efficiency that the engine can have and (b) the minimum amount of heat discharged in the air each hour of running the engine.
(a) 39.7
v %;
x 1010 J.
(b)0,94
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Transcribed Image Text

A steam engine takes heat from steam at 221 °C to do work. If the surrounding air at 25 °C is treated as the cold reservoir and the power of the engine is 3.50x 103 hp find (a) the maximum efficiency that the engine can have and (b) the minimum amount of heat discharged in the air each hour of running the engine. (a) 39.7 v %; x 1010 J. (b)0,94

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