Question: You are asked to test a machine that the inventor calls an in-room air conditioner, a big box, standing in the middle of the room,

You are asked to test a machine that the inventor calls an “in-room air conditioner”, a big box, standing in the middle of the room, with a cable that plugs into a power outlet. When the machine is switched on, you feel a stream of cold air coming out of it, How do you know that this machine cannot cool the room?

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Any air conditionertype heat engine will remove heat from the room Q the low temperature inp... View full answer

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