GKFix MCQ Question

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

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