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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I am not understanding how the exothermic, endothermic can be determined from the graph

$### Reaction Profile for C2H5Br + OH⁻ This educational resource illustrates a reaction profile (not to scale) for the chemical reaction: \[ \text{C}_2\text{H}_5\text{Br} + \text{OH}^- \rightarrow \text{C}_2\text{H}_5\text{OH} + \text{Br}^- \] #### Diagram Explanation - **Y-axis: E (kJ)** - Represents the energy in kilojoules. - **X-axis: Reaction Coordinate** - This axis represents the progress of the reaction from reactants to products. #### Key Features: - The profile shows an energy peak representing the transition state, which is the highest energy point that the reaction must overcome. - Reactants: $\text{C}_2\text{H}_5\text{Br} + \text{OH}^-$ start at a lower energy level. - Products: $\text{C}_2\text{H}_5\text{OH} + \text{Br}^-$ end at an even lower energy level than the reactants. - **Activation Energy (Eₐ):** The energy required to reach the transition state from the reactants is 161 kJ. - **Energy Change (∆E):** The difference in energy between the reactants and products is 71 kJ. #### Reaction Type The reaction is classified as **exothermic**, as the products have a lower energy level than the reactants, indicating a release of energy. This reaction profile helps in understanding the concept of activation energy, transition states, and the overall energy change of a chemical reaction.$

Transcribed Image Text:### Reaction Profile for C2H5Br + OH⁻ This educational resource illustrates a reaction profile (not to scale) for the chemical reaction: \[ \text{C}_2\text{H}_5\text{Br} + \text{OH}^- \rightarrow \text{C}_2\text{H}_5\text{OH} + \text{Br}^- \] #### Diagram Explanation - **Y-axis: E (kJ)** - Represents the energy in kilojoules. - **X-axis: Reaction Coordinate** - This axis represents the progress of the reaction from reactants to products. #### Key Features: - The profile shows an energy peak representing the transition state, which is the highest energy point that the reaction must overcome. - Reactants: $\text{C}_2\text{H}_5\text{Br} + \text{OH}^-$ start at a lower energy level. - Products: $\text{C}_2\text{H}_5\text{OH} + \text{Br}^-$ end at an even lower energy level than the reactants. - **Activation Energy (Eₐ):** The energy required to reach the transition state from the reactants is 161 kJ. - **Energy Change (∆E):** The difference in energy between the reactants and products is 71 kJ. #### Reaction Type The reaction is classified as **exothermic**, as the products have a lower energy level than the reactants, indicating a release of energy. This reaction profile helps in understanding the concept of activation energy, transition states, and the overall energy change of a chemical reaction.

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