## Kinetics

Sonia Perez 1G
Posts: 29
Joined: Fri Sep 25, 2015 3:00 am

### Kinetics

How would you determine the molecularity of a reaction?

Yuxi Chen 2G
Posts: 15
Joined: Fri Sep 25, 2015 3:00 am

### Re: Kinetics

Molecularity is determined by the number of species in an elementary step:

A -> D: unimolecular
A + B -> D: bimolecular
A + A -> D: bimolecular
A + B + C -> D: termolecular
A + B + B -> D: termolecular

sandyh9711
Posts: 21
Joined: Fri Sep 25, 2015 3:00 am

### Re: Kinetics

In other words, molecularity is simply the number of reactants participating in a reaction.

For example, $O_{3}\rightarrow O_{2}+O$ is unimolecular, whereas its reverse reaction, $O_{2}+O\rightarrow O_{3}$, is bimolecular.

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