Question: In a cyclic heat engine operating between a source temperature of 600C and a sink temperature of 20C , the least rate of heat rejection

In a cyclic heat engine operating between a source temperature of 600°C and a sink temperature of 20°C , the least rate of heat rejection per kW net output of the engine is :

(a) 0.460 kW

(b) 0.505 kW

(c) 0.588 kW

(d) 0.650 kW

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