Question

the coefficient of a performance of a refrigerator whose effeciency is 30%is ​

Answer 1

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Answer 2

Answer:

2.33

Explanation:

he efficiency of refrigerator is

η=30%=0.30

∴ coefficient of performance

β=(1−η)/η

=(1−0.30)/0.30

=0.70/0.30

=2.33