GKFix MCQ Question

What is the correct expression for Qc for the reaction 2H2(g) + S2(g) ⇌ 2H2S(g)?

• A. Qc = [H2]^2[S2] / [H2S]^2
• B. Qc = [H2S] / ([H2]^2[S2])
• C. Qc = [H2] / ([S2][H2S]^2)
• D. Qc = [H2S]^2 / ([H2]^2[S2])