Question

A Carnot’s engine works as a refrigerator between 250 K
and 300 K. If it receives 750 calories of heat from the reservoir
at the lower temperature, the amount of heat rejected at the
higher temperature is
(a) 900 calories (b) 625 calories
(c) 750 calories (d) 1000 calories

Answer 1

Answer:

a) 900 calories

Explanation:

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