GKFix MCQ Question

What is the enthalpy change for the reaction: H₂(g) + Br₂(l) → 2HBr(g)?

• A. +178.3 kJ mol⁻¹
• B. –178.3 kJ mol⁻¹
• C. +36.4 kJ mol⁻¹
• D. –36.4 kJ mol⁻¹