### Considering the Reaction Mechanism Shown Below#### Mechanism Steps:**Step 1**:\[ \text{H}_2\text{O}_2 + \text{I}^- \rightarrow \text{H}_2\text{O} + \text{IO}^- \] *(slow)***Step 2**:\[ \text{IO}^- + \text{H}_2\text{O}_2 \rightarrow \text{H}_2\text{O} + \text{O}_2 + \text{I}^- \] *(fast)*#### Explanation:The reaction mechanism involves two steps. 1. In the first step, hydrogen peroxide (H₂O₂) reacts with iodide (I⁻) to form water (H₂O) and hypoiodite (IO⁻). This step is slow and is considered the rate-determining step.2. In the second step, hypoiodite (IO⁻) further reacts with another molecule of hydrogen peroxide to form water, oxygen (O₂), and regenerate the iodide (I⁻) ion. This step proceeds fast.### Reaction Coordinate Diagram:Below the reaction mechanism, a reaction coordinate diagram illustrates the potential energy changes throughout the reaction progress.#### Description of the Graph:- **X-Axis**: Progress of the Reaction- **Y-Axis**: Potential Energy (kJ/mol)- The graph starts at a lower energy level and ascends to a peak around 40 kJ/mol, indicating the activation energy for the first step.- It then drops to around 30 kJ/mol, showing the formation of an intermediate.- A second peak at approximately 70 kJ/mol represents the activation energy for the second step.- Finally, the potential energy decreases drastically to just above 10 kJ/mol as the reaction reaches completion.### Question:What is the $ \Delta H $ for the reverse reaction?### Options:- 50 kJ/mol- 30 kJ/mol- None of the answers are correct- 20 kJ/mol- -20 kJ/mol

Answered: Image /qna-images/answer/bdea577a-db8d-4295-a947-8366bc9eb945.jpg

ep 1. H₂O₂ +J H₂O + 10 slow ep 2. 10 + H₂Qz H₂O + 0₂ + I fast The reaction coordinate diagram for this mechanism is show below. 70 60 40 30 10 Progress of the Reaction What is the AH for the reverse reaction? 50 kJ/mol/30 kJ/mol/none of the answers are correct/20 kJ/mol/-20 kJ/mol Potential Energy (kJ/mol)

ep 1. H₂O₂ +J H₂O + 10 slow ep 2. 10 + H₂Qz H₂O + 0₂ + I fast The reaction coordinate diagram for this mechanism is show below. 70 60 40 30 10 Progress of the Reaction What is the AH for the reverse reaction? 50 kJ/mol/30 kJ/mol/none of the answers are correct/20 kJ/mol/-20 kJ/mol Potential Energy (kJ/mol)

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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