14- Answer the following questions based on the potential energy diagram shown here: a. Does the graph represent an endothermic or exothermic reaction? b. Label the position of the reactants, products, and activated complex. c. Determine the heat of reaction, AH, (enthalpy change) for this reaction. PE (kJ) 250 200 150 100 50

14- Answer the following questions based on the potential energy diagram shown here: a. Does the graph represent an endothermic or exothermic reaction? b. Label the position of the reactants, products, and activated complex. c. Determine the heat of reaction, AH, (enthalpy change) for this reaction. PE (kJ) 250 200 150 100 50

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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14. Why does the rate of the reaction decrease over time? A. Exothermic reactions lose heat which cools the reaction which decreases the reaction rate. B. As the reaction proceeds, the concentration of the products results in fewer collisions. C. As the reaction proceeds, a decrease in the concentration of reactants results in fewer successful collisions. D. Not all molecules will react and some choose to stay in their present form. E. none of the above
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Consider this potential energy diagram Which diagram represents the effect of a catalyst on the same reaction?
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