Air Conditioning is a unit connected to the engine... when ac on, it connects to power from the engine to make it operate... it uses power making the engine work harder, consuming more gas.
I've heard from research that driving less that 50mph(or 40 i think) with windows down is more fuel efficient.. while driving 40 or 50mph + and having the ac on is more fuel efficient.. because of drag from wind.
because the compressor must be running to circulate the refrigerant in the system
For most cars the air conditioning is powered by a belt from the engine and even if the car is only idling it will be running without any meaningful effect on the car's battery. For some hybrid drive cars the air conditioning is powered electrically, so that it can work even with the engine off. These will drain the car's battery some, but the air conditioning controller will automatically turn off the air conditioning before this becomes a problem then turn it back on as soon as the engine is automatically restarted when it is again needed to drive the car.
If you have your air conditioning running it is the moisture that is pulled out of the air when it is being cooled. That water is then expelled outside of the car
The air comes from the air outside and the air conditioning system in the car turns this into cold or warm air.
The 1939 Packard was the first car with a true air-conditioning system.
No, Air conditioning actually makes the car's engine work harder causing to heat up more. To get a demonstration of the process, put your hand over the top of your outside air conditioner when it is running. Air conditioning is a heat movement. It's moving heat from inside your car to the outside. This heat is removed right in front of the radiator, so your csr runs hotter.
No as the heater is run utilizing the fluid from your radiator and an electric fan. Using the air conditioning does as the pump is run from a belt on your engine.
It's probably the catalytic converter fan; not the a/c fan.
Automotive air conditioning is the ac unit in your car. It's what "conditions" the air in your car, ie keeping the temperature inside the car cool or warm.
You will use more gas when your air conditioner is running.
No use for exhaust in car air conditioning
normally if a car is leaking water it is because of the air conditioning in the car being cold so the car will sometimes leak if the ac is running long enough and cold enough.