3 Postulates of the Kinetic Molecular Theory

Another postulate of the kinetic molecular theory is that gas particles are always in motion, like the other states of matter. But they are different in that they undergo random translational movement. In solids, the particles mainly experience vibrational motion and in liquids they mainly vibrate and rotate, with some translational motion. Gas particles move rapidly in straight lines, unless acted upon by another particle or the walls of a container. This continuous contact with the container leads to our understanding of gas pressure, the number of collisions over a certain amount of area. As per the KMT, an ideal gas should travel rapidly in a random, yet constant speed. In reality, gas particles do follow the assumption lead by the KMT. In extreme cases, when factors like temperature and pressure change, gases deviate from their ideal behaviour.

The basis of the previous postulate, leads us to the next postulate that states that the speed of the