Answered: A reaction profile (not to scale!) for…

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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$### Reaction Profile Analysis This reaction profile represents the chemical reaction: \[ \text{C}_2\text{H}_4 + \text{HCl} \rightarrow \text{C}_2\text{H}_5\text{Cl} \] **Graph Details:** - **Y-axis (E in kJ):** Represents energy in kilojoules. - **X-axis (Reaction Coordinate):** Shows the progression of the reaction. **Energy Levels:** - **Reactants:** C₂H₄ + HCl at the beginning of the reaction, shown at a lower energy level. - **Products:** C₂H₅Cl at the end, shown at a slightly lower energy level than the reactants. - **Activation Energy (Ea):** The peak of the curve measures the activation energy required for the reaction. This is labeled as 205 kJ. - **Energy Change (ΔE):** The difference in energy between reactants and products is shown as 70 kJ. **Questions for Analysis:** Select all that apply: - [ ] ΔE is positive. - [ ] The energy of the products is lower than the energy of the reactants. - [ ] The value of Ea in the presence of a catalyst would be larger than 205 kJ. - [ ] The magnitude of Ea for the reverse reaction is larger than 205 kJ. - [ ] The value of ΔE in the presence of a catalyst would be smaller than -70.0 kJ. This diagram is a key tool for understanding the energy transformations during chemical reactions and the impact of catalysts on reaction dynamics.$

Transcribed Image Text:### Reaction Profile Analysis This reaction profile represents the chemical reaction: \[ \text{C}_2\text{H}_4 + \text{HCl} \rightarrow \text{C}_2\text{H}_5\text{Cl} \] **Graph Details:** - **Y-axis (E in kJ):** Represents energy in kilojoules. - **X-axis (Reaction Coordinate):** Shows the progression of the reaction. **Energy Levels:** - **Reactants:** C₂H₄ + HCl at the beginning of the reaction, shown at a lower energy level. - **Products:** C₂H₅Cl at the end, shown at a slightly lower energy level than the reactants. - **Activation Energy (Ea):** The peak of the curve measures the activation energy required for the reaction. This is labeled as 205 kJ. - **Energy Change (ΔE):** The difference in energy between reactants and products is shown as 70 kJ. **Questions for Analysis:** Select all that apply: - [ ] ΔE is positive. - [ ] The energy of the products is lower than the energy of the reactants. - [ ] The value of Ea in the presence of a catalyst would be larger than 205 kJ. - [ ] The magnitude of Ea for the reverse reaction is larger than 205 kJ. - [ ] The value of ΔE in the presence of a catalyst would be smaller than -70.0 kJ. This diagram is a key tool for understanding the energy transformations during chemical reactions and the impact of catalysts on reaction dynamics.

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