At a certain temperature,bromine and nitric oxide react to form nitrosyl bromide: Br₂(g) + 2 NO(g) ⇌ 2 NOBr(g) .
When initial amounts of Br₂,NO,and NOBr are mixed,the concentration of NOBr increases.Which statement below is TRUE?

Question

Quizplus · Accepted Answer

If the concentration of NOBr is increasing, it means that the reaction quotient Q is less than the equilibrium constant Kc. According to Le Chatelier's principle, the system will shift towards the products to reach equilibrium. Therefore, Kc must be greater than Q for the forward reaction to be favored, which corresponds to choice B.

At a Certain Temperature,bromine and Nitric Oxide React to Form