1. Physics
2. Nuclear
3. Nuclear Reactions
4. Fusion
5. 29845

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Here's the actual problem:

An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid water at 0.0 degrees Celsius and rejects heat to a room at a temperature of 26.0 degrees Celsius. Suppose that the liquid water with a mass of 70.0 kg at 0.0 degrees Celsius is converted to ice at the same temperature. Take the heat of fusion for water to be L_f = 3.34x10^5 J/kg. How much heat |Q_H| is rejected to the room? Express your answer in joules to four significant figures.