Ideal gas laws

• An ideal gas is one in which all collisions between atoms or molecules are perfectly elastic and therefore no intermolecular forces are present. The molecules collide but otherwise do not interact with each other.
• Assumptions


  R: Particles are in a constant random motion

  A: Particles do not attract each other

  V: Volume of particles is smaller compared to volume of gas

  E: Collisions are elastic (no kinetic energy is lost when collided)

  D: Durations of collisions are very short
• Ideal gas equation

  p= pressure (pascals)

  V= volume

  N= number of molecules in gas

  K= Boltzman's constant (1.38×10 -23 JK -1)

  T= temperature

  
• Boyles Law

  States that the product of pressure and volume is constant as long as the temperature remains constant.

  (Combined Gas Law)

  
• Charles Law

  States that the volume of a gas is proportional to the temperature as long as the pressure remains constant.

  
  

  V$\div$ T = Constant
• Gay- Lussacs law

  States that the pressure is proportional to the temperature as long as the volume remains constant.

  
  

  P $\div$ T = Constant
• Ideal Gas law