Once equilibrium was established, some additional chlorine gas was added to the system. This resulted in

Question

Quizplus · Accepted Answer

According to Le Chatelier's principle, adding more of a reactant will shift the equilibrium position in the direction that consumes that reactant. In this case, adding more chlorine gas will shift the position to the left, consuming H₂O and producing more HCl and water. Therefore, the amount of H₂O will decrease relative to the equilibrium mixture. There is no reason to expect a change in the amount of HCl, so choice D is incorrect. Choice B is also incorrect because there is no reason to expect a change in the amounts of the other components of the equilibrium mixture.

Once Equilibrium Was Established, Some Additional Chlorine Gas Was Added