What is the rate law for the following mechanism in terms of the overall rate constant k? Step 1: #A + B leftrightarrow C# (fast) Step 2: # B + C -> D# (slow)
The rate law is
The reaction is
The rate of the reaction is governed by the slow step.
This gives the rate equation
The problem is that
We must express
We can do that because the first step is an equilibrium.
Substituting into the original rate expression, we get