Question: An electric heat pump that operates on a Carnot cycle is used to cool a house interior to (20^{circ} mathrm{C}) on a day when the

An electric heat pump that operates on a Carnot cycle is used to cool a house interior to $20^{\circ} \mathrm{C}$ on a day when the outside temperature is $38^{\circ} \mathrm{C}$.

(a) For every $1.0 \mathrm{~J}$ of electrical energy used, what quantity of thermal energy is removed from the house?

(b) What is the pump's coefficient of performance of cooling?

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