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A refrigerator is to remove heat from th...

A refrigerator is to remove heat from the stable inside at `9^@`C. Calculate the coefficient of performance if the room temperature is `36^@`C

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`T_1=273+36=309 K`
`T_2=9^@C=282K`
Coefficient of performance `beta=T_2/(T_1-T_2)`
we get `beta=(282)/(309-282)=(282)/(27)=10.4`
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