## Negative Order 15.3

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

904940852
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Joined: Fri Sep 29, 2017 7:07 am

### Negative Order 15.3

when can the rate law be negative such as on pg 621?

Wenjie Dong 2E
Posts: 53
Joined: Fri Jun 23, 2017 11:40 am

### Re: Negative Order 15.3

Negative order means that increasing the concentration slows down the reaction. I believe it happens when products' concentrations affect the reaction rate.

Jimmy Zhang Dis 1K
Posts: 30
Joined: Fri Sep 29, 2017 7:05 am

### Re: Negative Order 15.3

Also for a negative order reaction the overall order is normally undefined (like 2nd order + -1 order has a more complex rate constant than just first order)