A Carnot's engine works as a refrigerator between 250 K and 300 K

PHYSICS · Single correct · CBSE · Physics · Thermodynamics · Thermodynamics

Problem

A Carnot's engine works as a refrigerator between 250 K and 300 K. It receives 500 cal heat from the reservoir at the lower temperature. The amount of work done in each cycle to operate the refrigerator is: (1) 420 J (2) 2100 J (3) 772 J (4) 2520 J

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