**Question:**3. The graph that best describes a catalyzed (– –) and un-catalyzed (—) exothermic chemical reaction is:**Graphs:**There are four graphs labeled a, b, c, and d. Each graph plots the potential energy (Ep) in kilojoules (kJ) against the reaction coordinate. Each graph features a solid line and a dashed line representing different reaction pathways.**Graph Details:**- **Graph a:** - The solid line starts higher on the y-axis, rises to a peak, then drops down significantly, ending at a lower energy level. - The dashed line follows a similar path but peaks at a slightly lower energy level before aligning with the solid line at the end.- **Graph b:** - The solid line starts lower, rises to a high peak, then drops slightly and levels off. - The dashed line follows the same pattern but with a reduced peak height.- **Graph c:** - The solid line begins midway, rises to a peak, and then drops significantly lower, showing a more pronounced descent than initial height. - The dashed line runs parallel above the solid line, peaking at a similar point but reducing faster.- **Graph d:** - The solid line starts highest on the y-axis, rises to a peak, then falls considerably, ending at the lowest point. - The dashed line mimics the path with a slightly lower peak before merging with the solid line’s end.**Answer Choices:**- a- b- c- d**Explanation:**These graphs are used to determine the correct depiction of energy profiles for catalyzed and uncatalyzed exothermic reactions. Catalysts lower the activation energy of reactions, which is represented by the lower peaks in the dashed lines. The exothermic nature is shown by the final energy level being lower than the initial level. Choose the graph where the dashed line shows a lower peak compared to the solid line, and the final energy state is less than the starting state for both lines.

Answered: Image /qna-images/answer/fd8e7172-6b2d-42cd-a261-ea7eb53c2c34.jpg

3. The graph that best describes a catalyzed (---) and un-catalyzed (___) exothermic chemical reaction is a. Ep(kJ) Ep(kJ) a O d Reaction coordinate Reaction coordinate d. Ep(kJ) Ep(kJ) Reaction coordinate Reaction coordinate

3. The graph that best describes a catalyzed (---) and un-catalyzed (___) exothermic chemical reaction is a. Ep(kJ) Ep(kJ) a O d Reaction coordinate Reaction coordinate d. Ep(kJ) Ep(kJ) Reaction coordinate Reaction coordinate

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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