GKFix MCQ Question

For 2NOCl(g) ⇌ 2NO(g) + Cl₂(g), Kp = 1.8 × 10⁻² at 500 K. What is Kc?

• A. 1.8 × 10⁻²
• B. 4.38 × 10⁻⁴
• C. 7.3 × 10⁻⁴
• D. 2.5 × 10⁻³