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You happen to leave the door to your 27.9 ft3 refrigerator (rated at 458 W) open long enough that the air inside has been completely
You happen to leave the door to your 27.9 ft3 refrigerator (rated at 458 W) open long enough that the air inside has been completely replaced by room-temperature (70.0F) air, but no significant temperature change occurred in the food. How much would it cost to run the refrigerator to cool down the air to the original temperature 38.0F? Your utility company rate is 13.04 cents/kWh. The coefficient of performance for this refrigerator is 3.62. Neglect the volume occupied by the food. Assume that the room is at 1 atm and that air is an ideal diatomic gas
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