THE ASSUMPTIONS OF KINETIC THEORY.
The kinetic theory of gases depends upon seven assumptions about their behaviour

1. The volume occupied by the gas molecules themselves is negligible compared with that between them.
2. All the particles that make up the gas are identical.
3. Their distribution of energy amoung particles is random.
4. There are sufficent numbers of them for the statistical average to be meaningful.
5. Collisions are all perfectly elastic.
6. The molecules travel in straight lines between collisions.
7. Newtonian mechanics can be applied to molecule interactions.