Nitric oxide reacts with oxygen to form nitrogen dioxide: 2 NO(g) + O₂(g) ⇌ 2 NO₂(g)
What is K_c for the forward reaction if the equilibrium concentration of NO is 0.200 M,O₂ is 0.100 M,and NO₂ is 0.200 M at 25°C?

Question

Quizplus · Accepted Answer

K_c is calculated using the equation: K_c = [NO₂]^2 / ([NO]^2 [O₂]) Substituting the given values: K_c = (0.2 M)^2 / [(0.2 M)^2 x (0.1 M)] K_c = 10.0 Therefore, the best choice is D.

Nitric Oxide Reacts with Oxygen to Form Nitrogen Dioxide: 2