Question: Consider a reversible heat engine that employs a hot reservoir at a temperature of 750 K and a cold reservoir at 230 K. (a) What

Consider a reversible heat engine that employs a hot reservoir at a temperature of 750 K and a cold reservoir at 230 K. 

(a) What is the entropy change of the hot reservoir during a period in which 5000 J are extracted from the hot reservoir? 

(b) What is the change in the entropy of the cold reservoir? 

(c) Find the change in the entropy of the engine itself during this time.

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