An engine works between two reservoirs at 967 K and 293 K, respectively. It takes 2.50 kJ of heat from the hot reservoir and does 0.50 kJ of work. (a) What is the change of the entropy of the system and its environment combined? (b) What would be the work done if the engine were reversible and took the same amount of heat from the hot reservoir? (а) | J/K; (b) 1.742 kJ.

Question
An engine works between two reservoirs at 967 K and 293 K, respectively. It takes 2.50 kJ of heat from the hot reservoir and does 0.50 kJ of work. (a) What is the change
of the entropy of the system and its environment combined? (b) What would be the work done if the engine were reversible and took the same amount of heat from the
hot reservoir?
(а)
| J/K;
(b) 1.742
kJ.
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Transcribed Image Text

An engine works between two reservoirs at 967 K and 293 K, respectively. It takes 2.50 kJ of heat from the hot reservoir and does 0.50 kJ of work. (a) What is the change of the entropy of the system and its environment combined? (b) What would be the work done if the engine were reversible and took the same amount of heat from the hot reservoir? (а) | J/K; (b) 1.742 kJ.

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