Could be a number of reasons... it could be low on refrigerant (and the reason for that could be for a number of reasons), there may be a blockage in the system, the compressor clutch may not be cycling, airflow through the condenser fins may be disrupted, it could be a problem with the blend door... the list goes on and on.
Yes.
A.C. circulates air(just like a fan) and turns it cool.
check cooling fan
I have a 2003 X type Jaguar and the a/c does not come on when it's 45 degrees outside. Why?
It is temperature control. Your car is wanting to breath or create a constant flow of air and will adjust itself with heat/cool or outside air. You should have an option to go manual and override its desire.
An air conditioner evaporator is the part of the a/c system that the heat in your car transfers to causing cool air to blow from your vents. The blower is in front of it and it sucks air from the inside of your car and across the evaporator then blows out your vents.
Yes it could.
Yes, and it can also make your car to over heat
because when you stop the motor is hot from driving but when you drive it is cool because you are moving.
No, cause if you do, the car will blow up due to lack of air circulation...
about 5 minutes
You may have a faulty expansion valve. It may prevent compressor from running long enough to cool your car.