Q. What is the dissimilarity between the Atomic Theory and the Kinetic Theory?

Answer:-

Atomic theory is about structure of an atom that is its composition. Similar to an atom in general is made up of number of protons and neutrons residing in nucleus and electrons orbiting around the nucleus. Nevertheless kinetic theory deals with the manifestations of gases as molecules assuming that the volume occupied by molecules is insignificant compared to the domain and the intermolecular force between molecules is as well insignificant. as well assuming that there is a perfectly elastic collision between molecules and between molecules and wall various macroscopic properties like temperature, pressure, enthalpy etc are derived. For instance pressure exerted by gas on chamber walls are able to be derived by computing the momentum exchange of molecules with the wall. Therefore apparently there is no similarity between the two above-mentioned theories.