A basic postulate of the kinetic theory of gases is that the molecules of a gas move in straight lines between collisions. This implies that?
-
A.
collisions are perfectly elastic -
B.
forces of repulsion exist -
C.
forces of repulsion are in equilibrium -
D.
collision are inelastic
Correct Answer: Option A
Explanation
Collisions between gas particles or collisions with the walls of the container are perfectly elastic. None of the energy of a gas particle is lost when it collides with another particle or with the walls of the container.