Inert gas and Le Chateliers

[silveryhair]

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Can anyone tell me if I have the inert gases down?

When an inert gas is added into a container, nothing happen if the volume is kept constant.

However, what happens when you add the inert gas and not change the pressure? will it also proceed to the side with the greatest number of moles? or does it not affect it at all? Thanks!

 

[Strag]

If you increase concentration of an inert gas, it will increase the pressure but the concentrations do not change themselves (the inert gas is not part of Q); therefore, Q doesn't change with respect to increases of an inert gas.

Edit:
I believe inert gases do not affect the equilibrium in anyway since they are not part of Q (much like liquids and solids are not part of the equation as well).