GKFix MCQ Question

Which of the following is the correct expression for Kc for the reaction PCl5(g) ⇌ PCl3(g) + Cl2(g)?

• A. [PCl5]/[PCl3][Cl2]
• B. [PCl3][Cl2]/[PCl5]
• C. [PCl3]/[PCl5][Cl2]
• D. [Cl2]/[PCl5][PCl3]