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The efficiency of a Carnot engine kept at the temperatures of 27⁰C and 127⁰C is

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Correct option is B

Efficiency, η=1−T2T1Given, T2=27∘C=27+273=300KT1=127∘C=127+273=400Kη=1−34=25%

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The efficiency of a Carnot engine kept at the temperatures of 270C and 1270C is

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The efficiency of a Carnot engine kept at the temperatures of 27⁰C and 127⁰C is