Which will alter the composition of an equilibrium mixture?

Question

Quizplus · Accepted Answer

All of the given factors - increasing volume, temperature and pressure - can alter the composition of an equilibrium mixture.

Increasing volume will shift the equilibrium towards the side with more moles of gas, in order to occupy the increased volume.

Increasing temperature will shift the equilibrium in the endothermic direction (if the reaction is exothermic) and in the exothermic direction (if the reaction is endothermic) to counteract the added heat.

Increasing pressure will shift the equilibrium in the direction with fewer moles of gas, in order to reduce the total pressure.

Which Will Alter the Composition of an Equilibrium Mixture