Which is an example of the kinetic-molecular theory not holding true for a gas? The average kinetic energy of particles depends only on the temperature. The particles in a gas travel in straight lines in a continuous, random motion. The attraction between particles causes a gas to condense at low temperatures. The particles in a gas make up a small portion of the total volume of the gas.
The example inconsistent with the kinetic molecular theory is the attraction between particles causes a gas to condense at low temperature. The kinetic molecular theory states that the intermolecular forces in a gas are negligible, and the given example indicates that they have a significant effect.