it is the compressor because it is a working machine ............... :P
Keeping hot food in the refrigerator will make the food cold. It will not damage your refrigerator.
A refrigerator that's working normally becomes cold on the inside and hot on at least part of the outside, usually somewhere in the back. The refrigerator's job is to remove heat from the inside, where the food is stored. When it does that, it must do something with the heat. It's usually built to dissipate that heat from a series of tubes mounted on the back. If it is hot inside the compartment, it is likely that the gas has leaked away and the compressor running hot as a result.
The compressor is so hot b/c there are fans inside that push the hot air out of the refrigerator. No cold air is blowing out b/c the cold air is going into the fridge.
Because a refrigerator works by taking heat from the gas inside its tubings and dispersing that heat into the surrounding area, through the grille at the back.
It depends COMPLETELY on the temperature (and humidity to a lesser extent) outside the refrigerator. If the ambient temp is below - say 40 degrees - the inside temp of the refrigerator, then it need not be on at all. If its hot enough than it won't be able to stay cool inside even if it runs continually.
from what Tim explains in the movie,what can you infer about thw temperature inside a refrigerator?
Inside
Thermal energy never disappears, but it can be moved from one place to another, which is what a refrigerator does. If you examine your refrigerator you will be able to observe that there are heat exchange tubes (usually on the back) which get hot as they pump heat from the interior to the exterior of the refrigerator.
condensation inside a refrigerator
The fact that hot water may freeze faster than cold is often called the Mpemba effect
If the side of the refrigerator is burning hot, its motor may be overheating. First check that the cooling fan is working properly and that the refrigerator is properly ventilated. Sometimes if a refrigerator is jammed against a wall, it can overheat. Then, check around the refrigerator for the smell of something burning and for unusual sounds (as if a part has come loose). Call a repair service immediately. If everything is ok, perhaps your refrigerator is overloaded. Consider reducing the coldness of both the refrigerator and freezer sections, and do not place hot items inside. However, bear in mind that a well-stored refrigerator takes less energy to keep cool than an empty one, because the contents act as insulators and reduce the air space inside.
My personal rule is, never put anything hot in a refrigerator. Let is cool first.