Class 11 Physics - Chapter Thermodynamics NCERT Solutions | A refrigerator is to maintain eatables k
A refrigerator is to maintain eatables kept inside at 9°C. If room temperature is 36° C, calculate the coefficient of performance.
Temperature inside the refrigerator, T1 = 9°C = 282 K
Room temperature, T2 = 36°C = 309 K
Coefficient of performance = T1 / T2 - T1
= 282 / 309 - 282
= 282 / 27
= 10.44
Therefore, the coefficient of performance of the given refrigerator is 10.44.
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