A heat pump moves heat from the chilly 8°C air outside a house to the toastier 21°C air inside. The actual coefficient of performance of the system is 3.2, a typical value.a. If the system adds 11 kJ to the house each second, how much electric energy is required?b. How much energy would it take to add 11 kJ each second if the heat pump ran at the maximum theoretical efficiency?

Physics for Scientists and Engineers with Modern Physics
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Chapter21: Heat Engines, Entropy, And The Second Law Of Thermodynamics
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A heat pump moves heat from the chilly 8°C air outside a house to the toastier 21°C air inside. The actual coefficient of performance of the system is 3.2, a typical value.
a. If the system adds 11 kJ to the house each second, how much electric energy is required?
b. How much energy would it take to add 11 kJ each second if the heat pump ran at the maximum theoretical efficiency?

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