GKFix MCQ Question

What is the formula for calculating the standard enthalpy of reaction using bond enthalpies?

• A. ∆rH° = Σ bond enthalpies of products – Σ bond enthalpies of reactants
• B. ∆rH° = Σ bond enthalpies of reactants + Σ bond enthalpies of products
• C. ∆rH° = Σ bond enthalpies of reactants – Σ bond enthalpies of products
• D. None of the above