elementary steps


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Peter Nguyen 2I
Posts: 61
Joined: Fri Sep 28, 2018 12:29 am

elementary steps

Postby Peter Nguyen 2I » Sat Mar 16, 2019 10:37 pm

Why can we use the stoichiometric coefficients as the order of reactants?

Noah Cook 3O
Posts: 31
Joined: Fri Sep 28, 2018 12:20 am

Re: elementary steps

Postby Noah Cook 3O » Sat Mar 16, 2019 10:39 pm

It essentially tells you the relevance of that particular element to the overall reaction. Do note though that you can only do that if you are looking at the rate limiting step

Douglas Nguyen 2J
Posts: 71
Joined: Fri Sep 28, 2018 12:15 am

Re: elementary steps

Postby Douglas Nguyen 2J » Sat Mar 16, 2019 10:40 pm

We can use the stoichiometric coefficients when writing the rate law for elementary steps but not for the overall reaction. Given the overall reaction, the exponents on the concentrations for the rate law do not necessarily have to match the coefficients.

paytonm1H
Posts: 74
Joined: Fri Sep 28, 2018 12:18 am

Re: elementary steps

Postby paytonm1H » Sat Mar 16, 2019 10:42 pm

rate laws can be written directly from the molecularity of each elementary step. this is because elementary steps directly show how molecules collide in each step of a proposed mechanism.


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