GKFix MCQ Question

What is the correct equilibrium constant expression for the reaction N2(g) + O2(g) ⇌ 2NO(g)?

• A. Kc = [N2][O2] / [NO]^2
• B. Kc = [NO] / ([N2][O2])
• C. Kc = [N2][O2] / [NO]
• D. Kc = [NO]^2 / ([N2][O2])