## Slow step

$K = \frac{k_{forward}}{k_{reverse}}$

Kate Swertfager
Posts: 50
Joined: Wed Sep 18, 2019 12:17 am

### Slow step

Will we be given the intermediate reactions? Or should we be able to tell from the original reaction? Also how do we tell which intermediate reaction is the slow one?

805422680
Posts: 103
Joined: Sat Sep 14, 2019 12:16 am

### Re: Slow step

We could have either situation in an exam. The slow step will always be given to you

Paul Hage 2G
Posts: 105
Joined: Thu Jul 25, 2019 12:17 am

### Re: Slow step

Also, if you are given a rate law, it is important to know that the slow step is the rate-determining step. This can help you determine which intermediate reaction is the slow one when given the rate law.

Maya Pakulski 1D
Posts: 105
Joined: Thu Jul 11, 2019 12:17 am

### Re: Slow step

How would we determine what the intermediate reaction is if we are not given it?

Rida Ismail 2E
Posts: 139
Joined: Sat Sep 07, 2019 12:16 am

### Re: Slow step

I don't think there is a way for you to see which is the slow equation. I think they have to give it to you.

Rida Ismail 2E
Posts: 139
Joined: Sat Sep 07, 2019 12:16 am

### Re: Slow step

Maya Pakulski 1D wrote:How would we determine what the intermediate reaction is if we are not given it?

I think it has to be given

KaleenaJezycki_1I
Posts: 127
Joined: Sat Aug 17, 2019 12:18 am
Been upvoted: 2 times

### Re: Slow step

I believe that the elementary steps and indications of which is the fast and slow step will be given and if the slow step isn't given then I think it will be evident with looking at the observed reaction rate at the overall reaction and then writing out the ones for the elementary steps and the rate that matches the observed rate is the 'slow'/ rate determining step. You find this by the Pre-Equilibrium process

205405339
Posts: 77
Joined: Thu Jul 11, 2019 12:16 am

### Re: Slow step

It will be given which step is the slow step as we can not determine which is the slow step purely based off the equations