Air

Combustion

Usage of Oxygen

The atmosphere is the air around the earth.

About Air

Separation of Air

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Air pollution

The Atmosphere

Air is a mixture of gas. The composition of air varies at different place and time since air is a mixture.

Air is liquefied before it can be separated. Liquefaction is a process where a gas is changed into a liquid. Fractional distillation is used to separate air

Separation of Air

Nitrogen will be the first to be distilled since it has the lowest boiling point. Oxygen will be the last gas to be distilled since it has the highest boiling point

Air

1812

Determining the percentage of oxygen in the air