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Which of these reactions, I or II is exothermic? I II R P Reaction progress Reaction progress O I O II O Both are exothermic O Neither are exothermic

Which of these reactions, I or II is exothermic? I II R P Reaction progress Reaction progress O I O II O Both are exothermic O Neither are exothermic

Chemistry
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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**Quiz Question: Which of these reactions, I or II is exothermic?** **Graph Explanations:** - **Graph I:** - **Axes:** The x-axis represents the reaction progress, while the y-axis represents the energy. - **Curve:** The curve begins with a flat line representing the reactants (labeled R). It then rises to a peak, indicating the activation energy required for the reaction. After reaching the peak, the curve descends sharply, ending at a lower energy level, representing the products (labeled P). - **Interpretation:** The products have lower energy than the reactants, indicating that energy is released during the reaction. This reaction is exothermic. - **Graph II:** - **Axes:** The x-axis represents the reaction progress, and the y-axis represents the energy. - **Curve:** The curve starts with a flat line representing the reactants (labeled R). It then rises to a peak, indicating the activation energy required for the reaction. After the peak, the curve descends gradually but then levels off at a higher energy level, representing the products (labeled P). - **Interpretation:** The products have higher energy than the reactants, suggesting that energy is absorbed during the reaction. This reaction is endothermic. **Answer Options:** - O I - O II - O Both are exothermic - O Neither are exothermic **Correct Answer:** I
Transcribed Image Text:**Quiz Question: Which of these reactions, I or II is exothermic?** **Graph Explanations:** - **Graph I:** - **Axes:** The x-axis represents the reaction progress, while the y-axis represents the energy. - **Curve:** The curve begins with a flat line representing the reactants (labeled R). It then rises to a peak, indicating the activation energy required for the reaction. After reaching the peak, the curve descends sharply, ending at a lower energy level, representing the products (labeled P). - **Interpretation:** The products have lower energy than the reactants, indicating that energy is released during the reaction. This reaction is exothermic. - **Graph II:** - **Axes:** The x-axis represents the reaction progress, and the y-axis represents the energy. - **Curve:** The curve starts with a flat line representing the reactants (labeled R). It then rises to a peak, indicating the activation energy required for the reaction. After the peak, the curve descends gradually but then levels off at a higher energy level, representing the products (labeled P). - **Interpretation:** The products have higher energy than the reactants, suggesting that energy is absorbed during the reaction. This reaction is endothermic. **Answer Options:** - O I - O II - O Both are exothermic - O Neither are exothermic **Correct Answer:** I
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