The temperatures of the source and sink of a Carnot's heat engine are 27^{\circ} {\C} and 127^{\circ} {\C} respectively. If the absolute temperature of the sink is decreased by 10 \%, the efficiency of the engine

Correct Answer is : Increases by 7.5%

TS EAMCET Medical 7 May 2024 Shift 1 Paper

Question : 97 of 160

Marks: +1, -0

The temperatures of the source and sink of a Carnot's heat engine are 27∘C and 127∘C respectively. If the absolute temperature of the sink is decreased by 10%, the efficiency of the engine

Decreases by 32.5%
Decreases by 7.5%
Increases by 32.5%
Increases by 7.5%

Validate

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