Answered: The image presents a reaction profile…

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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$The image presents a reaction profile (not to scale) for the chemical reaction $ O_3 + NO \rightarrow O_2 + NO_2 $. The reaction coordinate is plotted on the x-axis, while energy $ E $ in kilojoules (kJ) is plotted on the y-axis. ### Description of the Diagram: - **Reactants**: The initial energy level is labeled "O$_3$ + NO", and it is placed lower on the energy scale. - **Products**: The final energy level is labeled "O$_2$ + NO$_2$", also depicted at the same energy level as the reactants. - **Energy Changes**: - A vertical arrow from the reactants’ line to the peak is labeled "200 kJ", indicating the activation energy required for the reaction. - Another arrow from the peak to the products’ level is labeled "11 kJ", showing the energy released or absorbed. ### Questions and Statements to Evaluate: 1. **The reaction is exothermic.** 2. **ΔE is positive.** 3. **The energy of the products is lower than the energy of the reactants.** 4. **If the energy of the activated complex were decreased, $ E_a $ would decrease.** Readers are encouraged to choose all applicable statements based on the details provided by the reaction energy profile.$

Transcribed Image Text:The image presents a reaction profile (not to scale) for the chemical reaction $ O_3 + NO \rightarrow O_2 + NO_2 $. The reaction coordinate is plotted on the x-axis, while energy $ E $ in kilojoules (kJ) is plotted on the y-axis. ### Description of the Diagram: - **Reactants**: The initial energy level is labeled "O$_3$ + NO", and it is placed lower on the energy scale. - **Products**: The final energy level is labeled "O$_2$ + NO$_2$", also depicted at the same energy level as the reactants. - **Energy Changes**: - A vertical arrow from the reactants’ line to the peak is labeled "200 kJ", indicating the activation energy required for the reaction. - Another arrow from the peak to the products’ level is labeled "11 kJ", showing the energy released or absorbed. ### Questions and Statements to Evaluate: 1. **The reaction is exothermic.** 2. **ΔE is positive.** 3. **The energy of the products is lower than the energy of the reactants.** 4. **If the energy of the activated complex were decreased, $ E_a $ would decrease.** Readers are encouraged to choose all applicable statements based on the details provided by the reaction energy profile.

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