NEET Physics Thermodynamics Questions Solved


The efficiency of Carnot's engine operating between reservoirs, maintained at temperatures 27°C and –123°C, is 

(1) 50%

(2) 24%

(3) 0.75%

(4) 0.4%

(1) η=1T2T1=1(273+123)(273+27)=1150300=12=50%

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