## Reaction order

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

Brian Huynh 3D
Posts: 20
Joined: Wed Sep 21, 2016 2:58 pm

### Reaction order

Is it possible for a reaction to have an order greater than 2?

sophianguyen_1N
Posts: 23
Joined: Wed Sep 21, 2016 3:00 pm

### Re: Reaction order

Yes it is! There are reactions where the values for n or m are two or greater.

Sarah_Heesacker_3B
Posts: 21
Joined: Wed Sep 21, 2016 2:57 pm

### Re: Reaction order

It is possible, but as Dr. Lavelle mentioned today it is very rare because a 3rd or 4th order reaction, for example, would require 3 or 4 molecules all to collide at the exact same time. This is why the 1st and 2nd order reactions are the most common.

K Phelan 3D
Posts: 23
Joined: Wed Sep 21, 2016 2:59 pm

### Re: Reaction order

Will someone go over again what it means for a reaction to be zero vs first vs second order? I don't fully understand what order means, I only know how to find it.