the nitrogen is only used to clean out the lines prior to adding the refrigerant
U should prolly pusome more compressed liquid nitrogen because youre prolly running out. and the cahh gets too hoott for the nitrogen to stand it.
nitrogen
with the compressor running.
An engine usually has a higher idle speed when the ac is running. If the high speed idle does not operate then the ac will cause the engine to stall.
Be sure the cooling fans are functioning when the ac is running.
Indirectly it does. Gasoline powers the engine which powers the AC. Without the engine running the AC doesn't work. Also on many cars the AC will cause the cars gas mileage to be lower if it is running at maximum AC.
yes
No.
If you mean can you plug in an ac adaptor to charge the laptop while the laptop is running, yes, you can. There is no harm to the laptop whatsoever.
This will depend on the AC that you are using and how much you are running it. The more you run it, the more it will use.
A little, the ac pump will put a draw on the engine more than without the ac on.
AC runs on the battery. If the car is off and you run the AC, then start the car, it will stall.