General

[quote=FlushPhantom]I am in chemistry class and I understood none of this. I need Jesus.[/quote]

You need a brain, not Jesus

[quote=HolyDragon]They take the air from the outside, pressurize it to decrease the temperature, and pump the cold air into the freezer.[/quote]

Pressurizing something increases it's temperature.

Fridges work by taking Freon and heating it up via compression so that it vaporizes, followed by allowing it to cool back down into liquid form through coils on the back of the fridge. After it cools, the liquid is sent through an expansion valve, where a quick change in pressure vaporizes the Freon and drastically lowers its temperature.

The air in the fridge and freezer lose their temperature to the cold coils, and reduce the internal temperature of the fridge,

I am in chemistry class and I understood none of this. I need Jesus.

From memory
Freezer's work using the PV=nRT.
They take the air from the outside, pressurize it to decrease the temperature, and pump the cold air into the freezer.
By heat transfer, hot things "flow" into cold things, so the cold air absorbs the heat from the objects.
The air is then somehow filtered and put back into circulation.
It is depressurized back to atmospheric pressure but with higher temperature and is released.
This explains why the back of a fridge and freezer is so hot.
Something like that.

The green tea example, it's based on the property of freezing water.
Heat is the transfer of energy, so energy was taken from the tea
It gets to its freezing temperature, so the molecules are slow enough to form a solid.

@HolyDragon @SolSweet ty! I just have another random question- how does a freezer freeze stuff? Like if I put a glass of green tea into the freezer, how does it become a glass of frozen green tea?

this is more like a chemistry problem...
Freezers have a job to continuously output a set temperature you want it to be. The reason being is that temperature changes to the middle of two objects/more. So let's say an item was put in the freezer where it has a temperature of 20*C and the Freezer is set @ 0*C. The item is going to try to reach 10*C, but the freezer is continuously outputting 0*C where the item's net temperature reaches half of that, half of the next, and so on until it reaches the limit closely to the continuous output. Same thing w/ the marshmallow and the fire as this is some property of heat transfer or w/e... to lazy to lookup the formal wording/law.

With this in mind... no, the items will not reach a temperature higher/lower than the environment they are in...... unless a chemical change occurs w/ the abrupt temperature changes for the object. (Where heat energy is given off b/c of this).

Rethinking, hahaha

For a freezer for sure, you can't go below the temperature of the air due to how heat transfer works. Freezers work basically using the PV=nRT formula. It circulates the air and adjusts the pressure, releasing the hot air back to the outside.

For heat, I'd say no. Can't imagine a stove melting itself if left on for a long time.