Kinetic Theory

• Assumptions of Ideal Gases:

  • molecules collide with no loss in kinetic energy
  • molecules take up no space
  • the time taken for a collision is negligible
  • the potential energy in molecules is negligible
  • energy is randomly distributed across molecules
  • large number of molecules and collisions
  • molecules move with constant velocity between collisions
• Gas Pressure

  The pressure exerted by a gas as a result of molecules colliding with the walls of the container
• Mean Square Speed

  The mean of the square of the speeds of the molecules in the gas
• The Mole

  The amount containing as many particles as there are atoms in 12g of Carbon-12