[opti384]

Let's say N₂+3H₂ 2NH₃ . Here if we just add 1 mol of Argon gas, it is known that it will not affect the equilibrium. However, if the whole gases are in a closed container, couldn't the addition of the argon gas affect the equilibrium since it will change the total pressure?

[Biopolmonkey]

No, adding argon would not have an effect despite total pressure increasing. This is because the partial pressures of N₂ and H₂ remain the same.

However, if you also increase the volume with the addition of argon then this will have an effect on the equilibrium.