Revise later
SpaceTo flip
If confident
All Flashcards
What is the effect of the rate-determining step on the overall reaction rate?
The rate-determining step limits the overall reaction rate.
What is the effect of a fast and reversible first step on determining the rate law?
The slow step's rate law will often include intermediates, requiring the use of the steady-state approximation to express the rate law in terms of reactants.
What are the differences between intermediates and catalysts?
Intermediates: Produced then consumed, don't appear in overall reaction. | Catalysts: Used then regenerated, appear in reactants and products.
What are the steps to apply the steady-state approximation when the first step is fast and reversible?
- Identify the intermediate. 2. Set up equilibrium for the fast, reversible step. 3. Solve for the intermediate's concentration. 4. Substitute the intermediate's expression into the slow step's rate law.