In a mechanical refrigerator, the low temperature coils are at a temperature of `-23^(@)` C and the compressed gas in the condenser has a temperature of ` 27^(@)C`. The theoretical coefficient of performance is :-

Options

A. 5
B. 8
C. 6
D. 6.5

Answer

A

Explanation

`beta=(T_2)/(T_1-T_2)=(-23+273)/((27+273)-(-23+273))=(250)/(50)=5`