Chapter 15: 12Q (page 412)
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, 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?
Short Answer
The machine cannot cool the room because the heat addition will make the room warmer