KMT

• Kinetic Molecular Theory (KMT)


  Explains how volume, pressure, temperature, and other properties affect the behavior of gas
• Gases


  • Made of molecules, which are thought to be spherical bodies with negligible mass and volume, that are away from each other far greater than the molecules' dimensions
  • Molecules are continuously moving in a random manner and this results to its frequent collision with one another and with the walls of its container
  • Energy is transferred from molecule to molecule during its collision but the total energy of all molecules in the container is the same, which is called perfectly elastic collision
  • Each gas molecule does not attract or repel other gas molecules
• Temperature


  • Related to the motion of gas molecules and average kinetic energy
  • A gas molecule with higher temperature moves faster and collides more frequently resulting to an increase in pressure
  • A gas molecule with low temperature moves slower
• Gas inside the hot air balloon


  • Moves faster and collides more frequently because it is heated below
  • This will cause the balloon to expand thus increasing its volume