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A Carnot's engine works as refrigerator...

A Carnot's engine works as refrigerator between `250 K` and 300K. 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 :

A

`420 J`

B

`772 J`

C

`2100 J`

D

`2520 J`

Text Solution

Verified by Experts

The correct Answer is:
A
`(Q_1)/(W)=(T_1)/(T_H-T_L) implies (500xx4.2)/(W)= (250)/(300-250) implies W=420J`.
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