Consider the plot of potential energy E vs. reaction progress for an exothermic chemical reaction. Which of the assignment is not correct? ID B progress of reaction - O line A: E, of the forward reaction line D: E for the reverse reaction O line B: AHF of the reactants O line C: AHf of the products all are correct

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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**Title: Analysis of Potential Energy vs. Reaction Progress for an Exothermic Reaction**

**Introduction:**
This section explores the plot of potential energy (E) against the progress of reaction for an exothermic chemical reaction. The objective is to examine which assignments of lines in the graph might be incorrect.

**Graph Description:**
The graph displays a curve showing potential energy (E) on the y-axis and progress of reaction on the x-axis. 

- **Line A**: Represents the activation energy (\(E_a\)) of the forward reaction. It is drawn from the reactants' energy level to the peak of the curve, indicating the energy barrier for the reaction to proceed.
  
- **Line D**: Denotes the activation energy (\(E_a\)) for the reverse reaction, extending from the products' energy level to the peak.

- **Line B**: Shows the enthalpy change (\(\Delta H\)) of the reactants, measured from the baseline potential energy to the reactants' starting energy level.

- **Line C**: Indicates the enthalpy change (\(\Delta H\)) of the products, from the baseline to the products' final energy level.

**Assignment Review:**
- Line A: \(E_a\) of the forward reaction
- Line D: \(E_a\) for the reverse reaction
- Line B: \(\Delta H\) of the reactants
- Line C: \(\Delta H\) of the products
- Option: "all are correct"

**Instruction:**
Identify which of the assignments is not correct by analyzing the graph details.

**Note:**
Moving to another question will save the current response.
Transcribed Image Text:**Title: Analysis of Potential Energy vs. Reaction Progress for an Exothermic Reaction** **Introduction:** This section explores the plot of potential energy (E) against the progress of reaction for an exothermic chemical reaction. The objective is to examine which assignments of lines in the graph might be incorrect. **Graph Description:** The graph displays a curve showing potential energy (E) on the y-axis and progress of reaction on the x-axis. - **Line A**: Represents the activation energy (\(E_a\)) of the forward reaction. It is drawn from the reactants' energy level to the peak of the curve, indicating the energy barrier for the reaction to proceed. - **Line D**: Denotes the activation energy (\(E_a\)) for the reverse reaction, extending from the products' energy level to the peak. - **Line B**: Shows the enthalpy change (\(\Delta H\)) of the reactants, measured from the baseline potential energy to the reactants' starting energy level. - **Line C**: Indicates the enthalpy change (\(\Delta H\)) of the products, from the baseline to the products' final energy level. **Assignment Review:** - Line A: \(E_a\) of the forward reaction - Line D: \(E_a\) for the reverse reaction - Line B: \(\Delta H\) of the reactants - Line C: \(\Delta H\) of the products - Option: "all are correct" **Instruction:** Identify which of the assignments is not correct by analyzing the graph details. **Note:** Moving to another question will save the current response.
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