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NCERT Textbook
THERMODYNAMICS

Class 11
Physics :-NCERT Solutions - Thermodynamics.

Question 12.10:
A refrigerator is to maintain eatables kept inside at 9°C. If room temperature is 36° C, calculate the coefficient of performance.


Answer:

Temperature inside the refrigerator, T1 = 9°C = 282 K

Room temperature, T2 = 36°C = 309 K

Coefficient of performance =

Therefore, the coefficient of performance of the given refrigerator is 10.44.


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