Question: A steam engine takes in superheated steam at 270 o C and discharges condensed steam from its cylinder at 50 o C. Its efficiency is

A steam engine takes in superheated steam at 270oC and discharges condensed steam from its cylinder at 50oC. Its efficiency is 30%.

(a) How does this efficiency compare with the maximum possible efficiency for these temperatures?

(b) If the useful power output of the engine is 200 kW, how much heat does the engine discharge to its surroundings in 1 h?

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