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Physics, 26.09.2019 21:20 shartman22
Aroom contains 75 kg of air at 100 kpa and 15°c. the room has a 250-w refrigerator (the refrigerator consumes 250 w of electricity when running), a 120-w tv, a 1.8-kw electric resistance heater, and a 50-w fan. during a cold winter day, it is observed that the refrigerator, the tv, the fan, and the electric resistance heater are running continuously but the air temperature in the room remains constant. the rate of heat loss from the room that day is kj/h.
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Aroom contains 75 kg of air at 100 kpa and 15°c. the room has a 250-w refrigerator (the refrigerator...
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