GKFix MCQ Question

What is the correct thermochemical equation for the standard enthalpy of formation of HBr(g)?

• A. H₂(g) + Br₂(l) → 2HBr(g)
• B. ½H₂(g) + ½Br₂(l) → HBr(g)
• C. H₂(g) + Br₂(g) → 2HBr(g)
• D. H⁺(aq) + Br⁻(aq) → HBr(g)