In the reaction of nitrogen gas with oxygen gas to produce nitrogen oxide, what is the effect of adding more oxygen gas to the initial reaction mixture? The reaction is shown below.
N₂(g) + O₂(g) ⇌ 2NO(g)

Question

In the reaction of nitrogen gas with oxygen gas to produce nitrogen oxide, what is the effect of adding more oxygen gas to the initial reaction mixture? The reaction is shown below. 
N₂(g) + O₂(g) ⇌ 2NO(g)

Quizplus · Accepted Answer

According to Le Chatelier's principle, if more of one reactant is added to an equilibrium mixture, the equilibrium will shift towards the direction that produces less of that reactant. In this case, adding more oxygen gas would cause the equilibrium to shift towards the production of more nitrogen oxide, resulting in the formation of more NO. Therefore, the correct answer is B.

In the Reaction of Nitrogen Gas with Oxygen Gas to Produce