The temperature inside a refrigerator is `t_(2)^(@)C` . The amount of heat delivered to the room for each joule of electrical energy consumed ideally will be

Options

A. `(t_(1))/(t_(1)-t_(2))`
B. `(t_(1)+273)/(t_(1)-t_(2))`
C. `(t_(2)-273)/(t_(1)-t_(2))`
D. `(t_(1)+t_(2))/(t_(1)+273)`

Answer

B

Explanation

`(Q_(1))/(W)=(Q_(1))/(Q_(1)-Q_(2))=(t_(1)+273)/(t_(1)-t_(2))`