For the following gas-aqueous liquid equilibrium for a closed system at a constant temperature, N₂(g) D N₂(aq) What is the effect on the equilibrium composition of the liquid when the partial pressure of N₂ gas above the liquid is decreased? A) The amount of N₂ dissolved in the liquid decreases. B) The amount of N₂ dissolved in the liquid increases. C) The amount of N₂ dissolved in the liquid does not change. D) Not enough information is provided to answer the question. E) Either A or B is possible.

Question

Quizplus · Accepted Answer

According to Le Chatelier's principle, when a stress is applied to an equilibrium system, the system will shift in a way that partially counteracts the stress. In this case, decreasing the partial pressure of N₂ gas above the liquid is a decrease in the concentration of one of the reactants. Therefore, the system will shift to partially counteract this decrease by decreasing the amount of N₂ dissolved in the liquid, resulting in choice A.

For the Following Gas-Aqueous Liquid Equilibrium for a Closed System