Question

according to the kinetic-molecular theory, the collision between two ideal gas particles is a result of

• attraction between the two particles
• repulsion from other gas particles
• repulsion from the wall of the container
• neither attraction nor repulsion

Explanation:

Analyze the postulates of kinetic-molecular theory

According to the kinetic-molecular theory of gases, ideal gas particles are in constant, random straight-line motion. One of the core postulates states that there are no intermolecular forces of attraction or repulsion between ideal gas particles.

Determine the cause of collisions

Because there are no attractive or repulsive forces acting between the particles, their collisions are purely mechanical events resulting from their random motion. They do not pull toward each other (attraction) nor push away before contact (repulsion). Therefore, the collision is a result of neither attraction nor repulsion.

Answer:

• attraction between the two particles
• repulsion from other gas particles
• repulsion from the wall of the container
• neither attraction nor repulsion (Correct answer)