Liquefaction of Gases

One liquefaction of gas takes place when the intermolecular forces of attraction become high. The intermolecular forces of attraction can be increased either by decreasing temperature or by increasing pressure of gas. Hence a gas can be liquefied by cooling or by the application of pressure or by the combined effect of both.

The two most common methods used for liquid liquefaction of gases are:

(1).Linde’s Method

(2).Clande’s Method