The particle model and motion in gases

• Solids :

  Strong forces of attraction

  Particles close together in a fixed regular arrangement

  Dont have much energy so they vibrate
• Liquids :

  Weaker forces of attraction

  Particles are close together but can move past each other

  Irregular arrangements

  Move in random directions at low speed
• Gases :

  No forces of attraction between the particles

  Have more energy then liquids and solids

  Free to move and constantly moving with random directions and speeds
• Colliding gas particles create pressure