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Thermodynamics and engines (A-level only)

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Question 9

An ideal refrigerator operates between a cold space at a temperature of −13 ∘C-13\text{ }^\circ\text{C}−13 ∘C and a hot space at a temperature of 37 ∘C37\text{ }^\circ\text{C}37 ∘C.

Calculate the input power to the refrigerator if the rate of transfer of energy to the hot space is 155 W155\text{ W}155 W.

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Thermodynamics and engines (A-level only) Questions

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