Suggest two methods to liquefy atmospheric gases?

Liquefaction of gases :

• When enough pressure is applied, the gases are highly compressed into a small volume.
• The particles of gases get so close together that they start attracting one another sufficiently to form a liquid.
• As a result, the gas takes the composition of a liquid and liquefication occurs.
• The following two methods can be applied to liquefy atmospheric gases.

Method 1: By changing temperature:

• The gases can be converted into liquids by bringing their particles closer.
• So atmospheric gases can be liquefied by increasing pressure.
• As temperature changes either particle move faster due to a change in kinetic energy.
• Thus they are liquified

Method 2: By changing the Pressure :

• Gas molecules can be squeezed together by increasing the pressure on the gas.
• As the pressure increases particles' closure.
• Thus they attain the packing of a liquid and are liquified.

Hence gases can be liquified by either increasing the pressure or by increasing the temperature