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Which energy difference in the energy profile below corresponds to the activation energy for the reverse reaction? Potential Energy Diagram for an Endothermic Reaction A D C F B (/mol) Reaction Coordinate (Time) Select one: O a. D O.b. E O c. A O d. B О е. С O f. F

Which energy difference in the energy profile below corresponds to the activation energy for the reverse reaction? Potential Energy Diagram for an Endothermic Reaction A D C F B (/mol) Reaction Coordinate (Time) Select one: O a. D O.b. E O c. A O d. B О е. С O f. F

Chemistry
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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### Understanding Energy Profiles in Chemical Reactions #### Question: Which energy difference in the energy profile below corresponds to the activation energy for the reverse reaction? #### Diagram: **Potential Energy Diagram for an Endothermic Reaction** - The graph depicts the relationship between Potential Energy (kJ/mol) on the y-axis and the Reaction Coordinate (Time) on the x-axis. - The following points and intervals are identified: - **A:** The starting point of the reactants. - **B:** The energy level of the reactants. - **C:** The final energy level of the products. - **D:** The peak representing the transition state. - **E:** The energy difference corresponding to the forward reaction's activation energy. - **F:** The energy difference between the reactants and products. Each energy interval is marked by a vertical line indicating the energy difference between two points. #### Select one: - ☐ a. D - ☐ b. E - ☐ c. A - ☐ d. B - ☐ e. C - ☐ f. F #### Explanation: For the reverse reaction, the activation energy is the difference in potential energy between the transition state (peak D) and the final products (point C). This is labeled as interval **C** on the diagram. #### Answer: The correct option is: - ☐ e. C
Transcribed Image Text:### Understanding Energy Profiles in Chemical Reactions #### Question: Which energy difference in the energy profile below corresponds to the activation energy for the reverse reaction? #### Diagram: **Potential Energy Diagram for an Endothermic Reaction** - The graph depicts the relationship between Potential Energy (kJ/mol) on the y-axis and the Reaction Coordinate (Time) on the x-axis. - The following points and intervals are identified: - **A:** The starting point of the reactants. - **B:** The energy level of the reactants. - **C:** The final energy level of the products. - **D:** The peak representing the transition state. - **E:** The energy difference corresponding to the forward reaction's activation energy. - **F:** The energy difference between the reactants and products. Each energy interval is marked by a vertical line indicating the energy difference between two points. #### Select one: - ☐ a. D - ☐ b. E - ☐ c. A - ☐ d. B - ☐ e. C - ☐ f. F #### Explanation: For the reverse reaction, the activation energy is the difference in potential energy between the transition state (peak D) and the final products (point C). This is labeled as interval **C** on the diagram. #### Answer: The correct option is: - ☐ e. C
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