At a certain temperature,nitrogen and hydrogen react to form ammonia:
N₂(g) + 3 H₂(g) ⇌ 2 NH₃(g) .
When initial amounts of N₂,H₂,and NH₃ are mixed,the concentration of NH₃ increases.Which statement below is true?

Question

Quizplus · Accepted Answer

The increase in concentration of NH₃ indicates that the reaction is proceeding in the forward direction. Therefore, the reaction quotient Q must be less than the equilibrium constant Kc. According to Le Chatelier's principle, when the system is not at equilibrium, it will adjust to reach equilibrium. Thus, the system will shift towards the products to increase the production of NH3 until Q=Kc. Since Q is less than Kc, it means that there are relatively more reactants than products, and the forward reaction is favored. Therefore, Kc>Q, and the correct answer is B.

At a Certain Temperature,nitrogen and Hydrogen React to Form Ammonia