In winter, an electric heater uses a certain amount of
Chapter 6, Problem 6.6(choose chapter or problem)
In winter, an electric heater uses a certain amount of electrical energy to heat a room to 20 C. In summer, an air conditioner uses the same amount of electrical energy to cool the room to 20 C. Is the change in internal energy of the heater larger, smaller, or the same as that of the air conditioner? Explain.
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