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31. In a mechanical refrigerator, the low temperature coils are at a temperature

of – 23°C and the compressed gas in the condenser has a temperature of 27°C. The theoretical coefficient of performance is

(a)  5                                         (b)  8

(c)   6                                         (d)  6.5

Ans. a

(21)

5/5 - (2 votes)

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