Question

what is the composition of air write the usage of N2​

Answer 1

Answer:

Standard dry air, which is mainly composed of three gases: nitrogen (about 78%), oxygen (about 21%), and argon (about 1%).

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Air: Its Composition and Properties. The Source of Industrial Gas Products. Nitrogen, Oxygen, Argon.

Answer 2

Answer:

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Standard dry air, which is mainly composed of three gases: nitrogen (about 78%), oxygen (about 21%), and argon (about 1%).

...

Air: Its Composition and Properties. The Source of Industrial Gas Products. Nitrogen, Oxygen, Argon.

GasArgon% by Volume0.93% by Weight1.28Parts per Million (by Volume)9339Chemical SymbolAr

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