GKFix MCQ Question

In the contact process, what is the value of Kc for the reaction 2SO₂(g) + O₂(g) ⇌ 2SO₃(g)?

• A. 1.7 × 10¹⁰
• B. 1.7 × 10²⁶
• C. 3.4 × 10²⁶
• D. 1.7 × 10¹³