Question

the closeness of particles of gas and their low speeds allow intermolecular forces to become important at certain pressures and temperatures. which best describes this statement?
this is a limitation of the kinetic - molecular theory.
this is a postulate of the kinetic - molecular theory.
this describes ideal gas behavior using the kinetic - molecular theory.
this describes ideal gas behavior without the kinetic - molecular theory.

Explanation:

The kinetic - molecular theory assumes gas particles have no intermolecular forces and move at high speeds. When particles are close and have low speeds, intermolecular forces matter, which is a limitation of the theory.

Answer:

This is a limitation of the kinetic - molecular theory.