Kinetic Molecular Theory

Kinetic Molecular Theory

Kinetic Molecular Theory is a set of basic assumptions about gas particles that allows us to predict their behavior fairly accurately. These are the four tenets of Kinetic Molecular Theory (KMT):

  1. The particles in a gas are small and very far apart. Most of a gas’s volume is empty space.
  2. Gas particles move in straight lines, in constant random motion. As a result, particles collide with each other and with the walls of the container.
  3. Collisions between particles are perfectly elastic. No kinetic energy is lost.
  4. Gas particles do not attract or repel one another.