GKFix MCQ Question

What is the value of Kc for the reaction H₂(g) + Br₂(g) ⇌ 2HBr(g) at 300K?

• A. 2.4 × 10⁴⁷
• B. 4.0 × 10³¹
• C. 5.4 × 10¹⁸
• D. None of the above