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

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**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.
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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