GKFix MCQ Question

If the reaction Fe₂O₃(s) + 3H₂(g) → 2Fe(s) + 3H₂O(l) is halved, what is the new ∆rH⁰?

• A. –33.3 kJ mol⁻¹
• B. +16.6 kJ mol⁻¹
• C. –824.2 kJ mol⁻¹
• D. –16.6 kJ mol⁻¹