One of the assumptions of kinetic theory of gases states that "there is no force of attraction between the molecules of a gas". How far is this statement correct ? Is it possible to liquefy an ideal gas ? Explain.

Explanation

This statement is applicable only to the ideal gases. For real gases, the attractive force become negligible under low pressure and at high temperature when the molecules in a gas are far apart. No, it is not possible to liquefy an ideal gas in the absence of intermolecular forces of attraction.