PCl5 (g) ⇌ PCl₃ (g)+ Cl₂ (g) For the reaction at equilibrium, if the volume of the container is increased, the amount of PCl5 present will

Question

Quizplus · Accepted Answer

According to Le Chatelier's principle, when a stress is applied to a system at equilibrium, the system will respond in such a way as to counteract the stress, and re-establish a new equilibrium state. In this case, increasing the volume of the container will decrease the pressure. Since there are 2 moles of gas on the product side and only 1 on the reactant side, decreasing the pressure will shift the equilibrium towards the side with fewer moles of gas, which is the reactant side. Therefore, the amount of PCl5 present will decrease.

PCl5 (G) ⇌ PCl₃ (G)+ Cl₂ (G) for the Reaction