Pre-equilibrium vs steady-state


Moderators: Chem_Mod, Chem_Admin

Daniel Zhang 1E
Posts: 20
Joined: Fri Sep 25, 2015 3:00 am

Pre-equilibrium vs steady-state

Postby Daniel Zhang 1E » Thu Feb 18, 2016 2:55 am

How do we know which of these two methods to use? Are there specific conditions we should look for or will the question tell us which of the two to use?

Kanwaldeep Rai 2H
Posts: 21
Joined: Fri Sep 25, 2015 3:00 am

Re: Pre-equilibrium vs steady-state

Postby Kanwaldeep Rai 2H » Thu Feb 18, 2016 10:18 am

My friend and I researched this and found:
The steady state method can only be used if the first step of a reaction is much slower than the second step, whereas the pre-equilibrium approximation requires the first step to be faster.

I don't know if this is completely correct but this is what we found.

Jana Sandhu 3J
Posts: 25
Joined: Fri Sep 25, 2015 3:00 am

Re: Pre-equilibrium vs steady-state

Postby Jana Sandhu 3J » Thu Feb 18, 2016 10:38 am

In lecture Dr. Lavelle said to just use the pre-equilibrium method rather than the steady-state one. He purposely only assigned textbook problems that use pre-equilibrium instead of steady-state.


Return to “Reaction Mechanisms, Reaction Profiles”

Who is online

Users browsing this forum: No registered users and 1 guest