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.
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.

The above statement is true. At a higher temperature the movement of gaseous molecules become faster such that there is no intermolecular attraction. Under this condition, gas behaves like an ideal gas. It is impossible to liquefy an ideal gas since ideal gas has no force of attraction among the gaseous molecules.