The following text comes from a propane distributor's sales catalog.
Which of the following postulates of the kinetic molecular theory of gases does propane contradict?
Propane exists as a gas at standard pressure and
temperatures above -44°C. However, at high pressure or
lower temperatures, propane exists as a liquid.
O
A Molecules move in straight lines until they collide with the container or other molecules.
O B. Interactions among molecules, with the exception of collisions, are negligible.
O
C. The molecules of a gas are in constant, random motion.
O
D.
The average kinetic energy of the gas depends only on its temperature.