Consider the reaction N₂(g) + O₂(g) $\rightleftharpoons$ 2NO(g), for which K_c = 0.10 at 2,000ºC. Starting with initial concentrations of 0.040 M of N₂ and 0.040 M of O₂, determine the equilibrium concentration of NO.

Question

Quizplus · Accepted Answer

First, use the equation for the equilibrium constant to calculate the equilibrium concentration of NO: K_c = [NO]2 / [N₂][O₂] 0.10 = [NO]2 / (0.040 M)(0.040 M) [NO]2 = 1.6 x 10^-6 M2 [NO] = 1.3 x 10^-3 M Therefore, the equilibrium concentration of NO is 0.013 M, which corresponds to choice C.

Consider the Reaction N2(g) + O2(g) ⇌\rightleftharpoons⇌ 2NO(g), for Which Kc = 0

Consider the Reaction N₂(g) + O₂(g) $\rightleftharpoons$ 2NO(g), for Which K_c = 0