nitrogen
ac motor
The power source is AC. Hence AC is used. DC application is limited.
I am not sure your question is clear enough but here I go... Stick Arc Welding (AC or DC), MIG (Metal Inert Gas) and TIG (Tunsten Inter Gas). All three of these are the basic metal welding machines.
It wont work for AC measurements. Not designed for AC application
This from the "Induction motor" article in Wikipedia: "In principle, any AC electrical generator can be called an alternator." The only difference between an AC motor and an AC generator is whether one has electrical energy put in to get mechanical energy out, or whether one has mechanical energy put in to get electrical energy out. That means the answer to your question is basically, "There is no physical difference between an AC motor and an alternator." The unit in question can be used in either way, and assumes a name based on which way it is used.
It's common name is freon.
Most popular would be r134a.
mineral oil
An AC compressor is part of an air conditioner which may be used in a car's AC system. The compressor is used to change the pressure between the AC's compartments in order to help condense the refrigerant gas back into a liquid.
It is a refrigerant. R134a is the common type. The old generic name is Freon.
This was answered on an episode of Mythbusters, you get better gas mileage with the AC on.
Yes. But if you try to save gas by turning off the ac and drive with the windows open you will change the aerodynamic properties of the car so that its air resistance is higher and it will therefore use as much (or more) gas as with the ac on (and windows closed).
The latest gas or refrigerant use for refrigerator, auto aircon and home air-conditioners is no other than 134a
This gas is methane (CH4).
Butane & Propane
The common name used for water in the form of gas is "water vapor."
Formaldehyde Ethylene oxide Betapropiolactone