Equilibrium Partial Pressures and Kp
Besides being described via equilibrium concentrations, equilibria involving gases can also be described in terms of Equilibrium Partial Pressures, (instead of concentrations).
WHY ?
Because we can manipulate the Ideal Gas Law…
Concentration, C, is moles / L , right?
And so is “n / V” in the Ideal Gas Law (moles / L).