Gas Laws and Kinetic Model

• Pressure is the force applied per meter squared
• The unit for pressure is Pascal (Pa)
• 0 Celsius converts to 273K
• The size of 1 degree equals 1K
• Using the kinetic model, when the volume of a container of gas is reduced at a constant temperature:

  • the molecules hit the wall more often per second
  • for exerted on the container increases
  • pressure increases as P=F/A
• Using the kinetic model, when the temperature of a fixed volume increases:

  • the molecules gain kinetic energy and velocity
  • so they hit the walls more often per second and with more force
  • force exerted on container increases
  • pressure increases as P=F/A
• Using the kinetic model, when the temperature of a gas at constant pressure increases,

  • the molecules gain kinetic energy and velocity
  • So they hit the walls more often per second and with more force
  • volume of container increases to keep pressure constant