Gases

• can fill any container and assume its shape and volume


  no definite shape or volume
• any two gases can combine and mix evenly within a container

  diffuse or spread out within their container
• air can be used as shock absorbers


  highly compressible
• gas can exert pressure on the walls of their container
• pressure depends on their temperature
• higher pressure = higher temp.
• atm

  atmosphere
• Pa

  pascal
• K

  kelvin
• mol

  moles
• pressure is the force exerted by gas
• volume is the space occupied by gas
• temperature is the kinetic energy of gas particles
• quantity is the amount of gas
• the kinetic molecular theory is the movement of molecules and is the foundation of gas laws
• gas particles are made up of tiny particles that are far apart from each other
• gas particles are in rapid, continuous, and random motion
• elastic collisions is the collision between gas particles
• KE can be transferred between particles
• total KE remains the same as long as the temp. is unchanged
• there are no attractive forces between gas particles
• gas molecules move too fast and are too far apart
• attraction between molecules is too weak
• in solids, attraction are most significant
• in liquids, attraction are more significant
• in gases, attraction is insignificant