molecularity

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Vanessa Reyes_1K
Posts: 60
Joined: Fri Sep 28, 2018 12:28 am

molecularity

Postby Vanessa Reyes_1K » Sun Mar 10, 2019 11:04 pm

Is the molecularity related to the amount of reactants in a reaction? Is it related to the order of the reaction?

MadisonFuentes1G
Posts: 52
Joined: Fri Sep 29, 2017 7:04 am

Re: molecularity

Postby MadisonFuentes1G » Sun Mar 10, 2019 11:10 pm

Molecularity depends on the number of reactants in a reaction (including the number of moles of a reactant).

Angel Chen 2k
Posts: 59
Joined: Fri Sep 28, 2018 12:20 am

Re: molecularity

Postby Angel Chen 2k » Sun Mar 10, 2019 11:57 pm

Molecularity is the number of molecules that are in the rate determining step. Which is different from the order of reactants which is the sum of the powers to which the reactant concentrations are raised in the rate law.

caseygilles 1E
Posts: 73
Joined: Fri Sep 28, 2018 12:18 am

Re: molecularity

Postby caseygilles 1E » Mon Mar 11, 2019 10:10 pm

Molecularity is the number of species in an elementary step. The rate law for each elementary step follows directly from molecularity. For example somehting is bimolecular if the elementary step involves two reactants. A+B ---> P , rate=k[A][B]

Vanadium Wang 4H
Posts: 60
Joined: Fri Sep 28, 2018 12:19 am

Re: molecularity

Postby Vanadium Wang 4H » Tue Mar 12, 2019 9:41 pm

The molecularity of a reaction is defined as the number of molecules or ions that participate in the rate determining step, the slowest step in a chemical reaction.


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