## Differential rate law

$aR \to bP, Rate = -\frac{1}{a} \frac{d[R]}{dt} = \frac{1}{b}\frac{d[P]}{dt}$

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Megan Purl 1E
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Joined: Fri Sep 29, 2017 7:07 am

### Differential rate law

What is the differential rate law and when will it be used?

Joanne Guan 1B
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Joined: Sat Jul 22, 2017 3:01 am

### Re: Differential rate law

For a reaction aR --> bP, the initial reaction rate is k[R]n. I believe in class we used this to compare two or more initial rates, but there could be more uses discovered later on in lecture.

Ramya Lakkaraju 1B
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### Re: Differential rate law

I think its main use is to integrate this and use it as the integrated rate law.

aTirumalai-1I
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### Re: Differential rate law

Deriving the integrated rate law from the differential rate law is more useful to us because we can plot ln[A] (and the natural logs of any other reactants present) against time and figure out the overall order of a reaction. As we discussed today, if the graph is linear, you know you are dealing with a first-order reaction.

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