Answer:
<u>Kinetic Molecular theory(KMT):</u>Each molecules or atom of any gas is in a constant motion, and will have an elastic form of collision with other atoms present along with it inside any enclosed area or container.
And, the total kinetic energy of the molecules will be equal to the total or absolute temperature possessed by the number of atoms which are in motion inside the enclosed container.
Explanation:
<u>Xenon and Argon's molecules inside a container:</u>
When we study the properties of argon,Ar and xenon,Xe the denser molecule is the later one.As, the density of xenon,Xe is around 5.761 kg/m³, while the argon's density is about 1.7838 kg/m³. So, obviously the moment of argon's molecules will be more then that of xenon's. And the "tail" drawn with the molecules will be highlighted with high value of velocity inside the diagram.