pre-equilibrium question
Moderators: Chem_Mod, Chem_Admin
pre-equilibrium question
If there are three steps in a reaction, two of which are fast, how do we know for which of the two to find K and substitute?
-
StudentD2B
- Posts: 43
- Joined: Fri Sep 28, 2018 12:27 am
- Been upvoted: 1 time
Re: pre-equilibrium question
Find K for the first fast step, If the fast step is after the slow step, (ie. fast, slow, fast) you can ignore the second fast step completely because steps that follow the rate determining step take place as soon as the intermediate has been formed and have a negligible effect on the overall rate
-
George Ghaly 2L
- Posts: 66
- Joined: Fri Sep 28, 2018 12:29 am
- Been upvoted: 1 time
Re: pre-equilibrium question
Only everything before the intermediate being formed contributes to the rate law so if it comes after the slow step it is not really accounted for.
Return to “Reaction Mechanisms, Reaction Profiles”
Who is online
Users browsing this forum: No registered users and 5 guests