The concentration of
I published a note on this topic ~two weeks ago... Here is the link to my answer presentation. => https://socratic.org/questions/what-is-meant-by-a-stress-on-a-reaction-at-equilibrium?source=search
Quick Answer => Adding
Go to the link mentioned above for more support on this. It is really very simple concept. Good luck.
Principle of Le Chatalier applies.....
The equilibrium position shifts so as to nullify the change you have made. The change you made was to add