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The temperature of a refrigeratoe is kep...

The temperature of a refrigeratoe is kept at `7^(@)C` to keep the food articles kept in it in good condition. What is its coefficient of performance, if the room temperature is `37^(@)C`

A

7.5

B

8.3

C

9.33

D

10.5

Text Solution

Verified by Experts

The correct Answer is:
C
`T_(1)=273+37=310KandT_(2)=273+7=280K`
`thereforebeta=T_(2)/(T_(1)-T_(2))`
`=280/(310-280)=280/30=28/3=9.33`
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