What is the molecularity of an elementary step, given its rate law is as follows: rate = k[a]2[b]?

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Double Bubble

Chemistry

30 January, 15:16

What is the molecularity of an elementary step, given its rate law is as follows: rate = k[a]2[b]?

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Jessie Bullock · Answer 1

Chemical reaction: 2A + B → unkwown product.

Molecularity is the number of molecules that come together to react in an elementary (single-step) reaction and Molecularity in chemistry is the number of molecules that come together to react in an elementary (single-step) reaction and is equal to the sum of stoichiometric coefficients of reactants in this elementary reaction.

This reaction is termolecular (or trimolecular) because three molecules react (two A and one B).