## rate of consumption

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

megangeorge-1K
Posts: 59
Joined: Thu Feb 01, 2018 3:01 am

### rate of consumption

Why does the average rate of consumption formula have a negative and the average rate of formation does not?

Danielle Hoekstra 1C
Posts: 30
Joined: Tue Oct 02, 2018 12:15 am

### Re: rate of consumption

Here is a website I used to help me understand this:

https://chemistry.stackexchange.com/que ... e-negative

Kevin Tang 4L
Posts: 83
Joined: Fri Sep 28, 2018 12:28 am

### Re: rate of consumption

Because the reactants are used up, thus the negative sign and the products are created, thus being positive.

Hope this helps and correct me if I'm wrong. Thanks!