Gas Laws | Kinetic Molecular Theory

The kinetic molecular theory

The kinetic-molecular theory of gases can be summarized using the following five postulates:

  • A gas consists of molecules in constant random motion.
  • Gas molecules influence each other only by collision.
  • There are no inter molecular forces of attraction.
  • All collisions between gas molecules are perfectly elastic; all kinetic energy is conserved.
  • The volume actually occupied by the molecules of a gas is negligibly small; the vast majority of the volume of the gas is empty space through which the gas molecules are moving.

The KMT can be used to explain Pressure, Change in volume with temperature, etc.