Q 30 A refrigerator based on Carnot cycle receives heat from 227 C and rejects heat at 727 C - Physics - Atoms

Question

Q 30 A refrigerator based on Carnot cycle receives heat from 227
° C and rejects heat at 727 ° C Let the work input required
per unit heat received is x If the same machine is used as a Carnot
engine, then its efficiency is y The ratio of x and y is
(1) 2
(2) 1
(3) 3
(4) 1 2

Pintu B. · Accepted Answer

Dear Student ,
Here in this case , from the given data we can write that ,

xy=227+273727+273=5001000=12
Regards

Q.30. A refrigerator based on Carnot cycle receives heat from 227 ° C and rejects heat at 727 ° C. Let the work input required per unit heat received is x. If the same machine is used as a Carnot engine, then its efficiency is y. The ratio of x and y is (1) 2 (2) 1 (3) 3 (4) 1 2

Q.30. A refrigerator based on Carnot cycle receives heat from 227 $°$ C and rejects heat at 727 $°$ C. Let the work input required per unit heat received is x. If the same machine is used as a Carnot engine, then its efficiency is y. The ratio of x and y is
(1) 2
(2) 1
(3) 3
(4) $\frac{1}{2}$