One of the assumptions of the 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.

(N/A) This statement is correct only for an ideal gas. It is impossible to liquefy an ideal gas because there are no intermolecular forces of attraction between the molecules of an ideal gas. Liquefaction requires the presence of intermolecular forces to bring molecules closer together to form a liquid phase.