How does an Air Conditioner work

Rather than say and air conditioner cool a room, it would be more accurate to say it removes heat from the space.
To understand air conditioning, you have to know that the state of any substance is related to temperature.
Apply heat to a liquid, and it boils; increase the heat, and the liquid vaporizes.
Withdraw heat from a gas and it liquefies; further reduce temperature, and the liquid freezes.
Air conditioning accomplishes heat transfer by forcing a chemical called Freon to cycle between liquid and gaseous forms.
Freon has a very low boiling point—that is, the attraction among molecules is weak.
In an air conditioner, Freon is kept in a tube at very high pressure and then released through a valve into a low-pressure evaporator.
With no force pressing them together, the molecules go on the move, and the liquid boils and then vaporizes.
This change of state requires heat.
The Freon takes this heat from air in the room.
Then the gaseous Freon passes to the compressor, which pushes its molecules together, and onto condenser tubes, where it liquefies.
In the process the heat associated with fast -moving molecules is lost, released to the outdoors.
The liquid Freon begins the process again.