Question

give three examples of compressed gases and their uses
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Answer 1

Compressed gas: Nitrogen, argon, helium, oxygen, hydrogen.

Compressed air is used as a breathing gas by underwater divers. It may be carried by the diver in a high pressure diving cylinder, or supplied from the surface at lower pressure through an air line or diver's umbilical.[1] Similar arrangements are used in breathing apparatus used by firefighters, mine rescue workers and industrial workers in hazardous atmospheres......