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Is there any association between the molecularity and the coefficient of an elementary step. For example, when the molecularity is termolecular, does it mean that the coefficients of the reactants in a balanced elementary step add up to be 3?
Molecularity is the number of species involved in an elementary step. So yes, for example a termolecular elementary step would have to have three reactants colliding which is seen in a reaction in which the stoichiometric coefficients add up to three.
Yes, I believe that's correct. Molecularity is the number of reactants in a particular step, so for example a reaction that requires 2 molecules of one compound and 1 molecule of another would be 2A+B--->product, and it should be termolecular.
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