A room contains 75 kg of air at 100 kPa and 15 deg C. The room has a 250 W refrigerator, a 120 W…

A room contains 75 kg of air at 100 kPa and 15 deg C. The room has a 250 W refrigerator, a 120 W television, a 1.8 kW electric resistance heater, and a 50 W fan.During a cold day, it is observed that the appliances all run continuously but the air temperature remains constant. What is the rate of heat loss from the room?

 

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