Pressure in gases

• Heating - more energy

  -move quicker

  -more collisions

  -increase pressure
• Volume - increased = collisions decreased

  -overall decrease in pressure
• Equation for fixed mass & constant temperature

  Constant = Pressure (Pa) x Volume (m3)

  Constant = P x V
• Volume increase = pressure decrease

  volume decrease = pressure increase
• Pressure of gas changes = volume can also change

  eg. Helium - filled balloon
• Work done on gas = gain internal energy, increase temperature ,

  eg. Bicycle tyre