1.

The temperature inside a refrigerator is t_(2).^(@)C and the room temperature is t_(1).^(@)C. The amount of heat delivered to the room for each joule of electrical energy consumed ideally will be

Answer»

`t_(1)/(t_(1)-t_(2))`
`(t_(1)+273)/(t_(1)-t_(2))`
`(t_(2)+273)/(t_(1)-t_(2))`
`(t_(1)-t_(2))/(t_(1)+273)`

ANSWER :B


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