equilibrium constant

• all reactants and products must be in the gaseous state for Kp to be calculated
• in a gaseous system, each gas has a partial pressure which adds up to give the total pressure.

  partial pressure of A = moles of A/total moles x total pressure
• 2A(g) + 3B(g) -> Y(g) + 2Z(g)

  Kp = (pY)(p^2Z)/(p^2A)(p^3B)
• partial pressure is


  each gas’s contribution to the total pressure
• when the temperature on Kp increases in an endothermic reaction the equilibrium..

  shifts to the right so partial pressure of products increase so Kp increases
• the kinetic effect of increasing temperature and pressure for any reaction will increase the rate of reaction because

  temperature- many more particles have energy greater than or equal to the activation energy so there are more successful collisions

  pressure - more particles are in the same volume so more successful collisions per second