Question: The water in a deep underground well is used as the cold reservoir of a Carnot heat pump that maintains the temperature of a house

The water in a deep underground well is used as the cold reservoir of a Carnot heat pump that maintains the temperature of a house at 301 K. To deposit 14 200 J of heat in the house, the heat pump requires 800 J of work. Determine the temperature of the well water?

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