300 calories of heat is given to a heat engine, and it rejects 225 calories of heat. If source temperature is 227 ° C , then the temperature of sink will be _____ C ∘ .

Question

300 calories of heat is given to a heat engine, and it rejects 225 calories of heat. If source temperature is 227 ° C , then the temperature of sink will be _____ C ∘ .,

MARKS App · Accepted Answer

Efficiency of Carnot engine is given by η = 1 - Q 2 Q 1 = 1 - T 2 T 1 . ⇒ 1 - 225 300 = 1 - T 2 500 T 2 = 5 3 × 225 = 375 K So, temperature of sink is T 2 = 375 - 273 = 102 ° C

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