🤓 Based on our data, we think this question is relevant for Professor Smeureanu's class at HUNTER.
Bond Energies/Enthalpies: ΔHrxn = reactants - products
Use the molar bond enthalpy data in the table to estimate the value of ΔH°rxn for the equation.
C2H4(g) + HBr(g) → C2H5Br(g)
The bonding in the molecules is shown here.