1). It's removing heat from the food-storage compartment, and that heat has to go somewhere.
2). In order to do the job, it has to use some extra energy; it gets that from the electric company,
and exhausts that extra energy also into the kitchen.
The compressor compresses the refrigerant gas. This raises the refrigerant's pressure and temperature, so the heat-exchanging coils outside the refrigerator allow the refrigerant to dissipate the heat of pressurization.
give off heat
A refrigerator is a form of heat pump. It pumps heat out of something.
Normally, heat moves from a higher temperature to a lower temperature. Devices that use work to move heat are called heat movers. A refrigerator is an example of a heat mover because it takes the heat from inside of the refrigerator and moves it to the outside. The 2nd law of thermodynamics allows this to occur if work is done in the process. A refrigerator does work as it moves the heat from inside the refrigerator to the warmer room.
no
The compressor compresses the refrigerant gas. This raises the refrigerant's pressure and temperature, so the heat-exchanging coils outside the refrigerator allow the refrigerant to dissipate the heat of pressurization.
give off heat
All people what or black give off heat.
As refrigerators give off heat from the back, the only real way to conserve the heat from it is to use it in a room that is already cold. Thus using the heat from the heat exchange on the back to add to any heat source in the room. This will not act as a heater for the room but may help to maintain the temperature very slightly when the heating is turned off.
A refrigerator is a form of heat pump. It pumps heat out of something.
Yes.
A refrigerator works by evaporating the coolant inside the refrigerator thereby absorbing heat. The evaporated coolant is pumped outside of the refrigerator and compressed to make it liquefy and give up its heat then returned to be evaporated again.
it gives off a great deal of heat
A firework explosion gives off heat.
Normally, heat moves from a higher temperature to a lower temperature. Devices that use work to move heat are called heat movers. A refrigerator is an example of a heat mover because it takes the heat from inside of the refrigerator and moves it to the outside. The 2nd law of thermodynamics allows this to occur if work is done in the process. A refrigerator does work as it moves the heat from inside the refrigerator to the warmer room.
the steam will give off a large amount of heat as it condenses.
It keeps heat from outside the refrigerator from getting into the refrigerator.