gas particle motion and pressure

• describe motion in gases

  gas particles constantly move in random motion
• describe pressure in gases

  particles collide and exert force with other particles and boundaries
• give factors affecting gas pressure

  temperature and volume
• describe affect of increase temperature on gas pressure

  1. particles have more kinetic energy
  2. particles move faster
  3. more frequent and energetic collisions
  4. increase gas pressure
• describe affect of increasing volume on gas pressure

  1. particles spread out
  2. less frequent collision
  3. decrease gas pressure
• describe affect of pressure on expandable container

  increase - expand

  decrease - compress
• describe affect of doing work on gas

  1. energy transferred to gas particles
  2. increase internal energy of gas
  3. increase temperature of gas