GKFix MCQ Question

What is the correct expression for Qc for the reaction CO(g) + H2O(g) ⇌ CO2(g) + H2(g)?

• A. Qc = [CO][H2O] / ([CO2][H2])
• B. Qc = [CO2] / ([CO][H2O][H2])
• C. Qc = [H2] / ([CO][H2O][CO2])
• D. Qc = [CO2][H2] / ([CO][H2O])