Part 4: The gas particles do not interact with each other or with the walls of any container.

 As the gas particles collide with one another, they will not interact with each other. They will not establish any bonding or interactions of any sort. In addition, any collisions with the walls of any container will also occur free from any attractive forces.
   If the particles were to collide and establish bonds or attractions, then the system would be restricted in the amount of available motion. In addition, the formation of bonds or interactions would lead to the establishment of short-range crystal structures. This would be the beginning stage of condensation of the gas. The Ideal Gas will not establish interactions or bonds. Consequently, it will not condense.

 As a gas approaches its actual condensation temperature, then this part of the Kinetic Molecular Theory will cause more and more significant errors. It is critical when studying gases that they truly be gases without any condensation.

The process of establishing interactions or bonds between gas particles will reduce the number of moving objects in the system. It will also create larger objects so that the idea of zero volume becomes a bigger problem. To further complicate the situation, when a bond or interaction is established potential energy will be released. This energy will increase the kinetic energy of the system and create problems with Part Three of the Kinetic Molecular Theory