The reaction h2(g) + 12(g) → 2 hi(g) and its reverse were assumed to be elementary bimolecular med to be elementary bimolecular reactions. however, jh sullivan chem phys 1967 4673) sugested that the following me originally proposed by m bodenstein (z physik chem 1898, 29, wym bodenstein (z physik chem 1898, 29, 56), provides a better explanation of the experimental results: 12 = 1 + 1 k1, k1 1 + 1 + h2 = 2 hi k2 obtain the expression for the rate of formation of hi based on this mechanism. under what conditions does this rate law reduce to one for an elementary bimolecular reaction?