2007-11-23 13:44:08 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics
yes. even a fan can do that.
consider this example. you set up a conveyor belt to transport a brick from one room to another. now does the energy the motor consumes to drive the conveyor depend on how hot the brick is? the brick could be freezing cold, or molten (more energy).
study Carnot machines to understand the theoretical limit of your AC
the "top contributor's" answer above is seriously confused.
2007-11-23 13:49:08 · answer #1 · answered by Anonymous · 0⤊ 1⤋
Yes. An air conditioner is a 'heat pump'. It can pump more energy in the form of heat across a relatively small heat difference than the amount of energy put into pumping. The total amount of heat taken out of the room plus the amount of energy running the air conditioner, is the amount of heat released to the outside world, so everything balances.
2007-11-24 01:14:34 · answer #2 · answered by David P 2 · 0⤊ 0⤋
Never. It is not a perpetual motion machine that could do more work than the energy needed to run it.
2007-11-23 21:47:46 · answer #3 · answered by Rich Z 7 · 0⤊ 0⤋