A reversed Carnot cycle refrigerator maintains a temperature

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A reversed Carnot cycle refrigerator maintains a temperature of –5°C. The ambient air temperature is 35°C. The heat gained by the refrigerator at a continuous rate is 2.5 kJ/s. The power (in watt) required to pump this heat out continuously is _______

1. 373.13
2. 373.23
3. 373
4. 473.13

Correct Option: A

	Q₁	=	Q₂
	268		308

Q₂ =	2.5 × 308	[Q₁ = 2.5]
	268

Q₂ = 2.873 kW
w = Q₂ – Q₁ = 0.373 kw = 373.13 Watt.