23. Consider the reaction coordinate diagram shown. What is the rate-determining step in the conversion of A to G? B F E A G Progress of rxn Free Energy
23. Consider the reaction coordinate diagram shown. What is the rate-determining step in the conversion of A to G? B F E A G Progress of rxn Free Energy
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:**Question 23**: Consider the reaction coordinate diagram shown. What is the rate-determining step in the conversion of A to G?
**Graph Explanation**:
The diagram is a reaction coordinate plot with "Free Energy" on the vertical axis and "Progress of reaction (rxn)" on the horizontal axis. The plot represents the energy changes throughout a multi-step reaction from reactant A to product G. Points along the curve are labeled A, B, C, D, E, F, and G.
1. **A**: Starting point of the reaction, representing reactants with low free energy.
2. **B**: A peak indicating the activation energy for the first step.
3. **C**: A valley indicating an intermediate with lower energy than point B.
4. **D**: The highest peak indicating the transition state with the maximum free energy, representing the rate-determining step.
5. **E**: A lower point than D, another intermediate.
6. **F**: Another peak, lower than D, indicating another activation energy.
7. **G**: The final point, representing the products with the lowest free energy in the reaction.
The rate-determining step is the conversion that requires overcoming the largest energy barrier, which is the highest peak at point D.
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