One methоd fоr mаking ethаnоl, C2H5OH, involves the gаs-phase hydration of ethylene, C2H4: Estimate ΔH for this reaction from the given average bond dissociation energies, D. Must show your work on scratch paper to receive credit. Bond Bond Energy (kJ/mol) O-H 464 C=C 611 C-C 345 C-O 350 C-H 415