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A refrigerator is to maintain eatables k...

A refrigerator is to maintain eatables kept inside at `7^(@)C`. The coefficient opf performance of refrigerator if room temperature is `387^(@)C` is

A

15.5

B

16.3

C

20.1

D

9.03

Text Solution

Verified by Experts

The correct Answer is:
D
Here , `T_(1)=38^(@)C=38 + 273 = 311 K`
`T_(2)=7^(@)C = 7 + 273 =280 K`
`therefore` coeffiecient of performance of the refrigeratior,
`=(T_(2))/(t_(1)-T_(2))=(280)/(311-280)`=9.03
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