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Application: Chemical Kinetics 1) The graph below is a potential energy diagram for the hypothetical reaction: A + B + C + D Potential energy (kJ) 100 90 80 70 60 50 40 30 20 10 A+B Reaction coordinate C+D a. Is the forward reaction endothermic or exothermic? Calculate the value of AH for this reaction. b. What is the value of the potential energy of the activated complex? c. Calculate the activation energy (EA) for the forward reaction. d. Draw a dashed line to show the effect of adding a catalyst to the system which decreases EA by 20 KJ. e. Name 4 things that speed up a reaction:

Application: Chemical Kinetics 1) The graph below is a potential energy diagram for the hypothetical reaction: A + B + C + D Potential energy (kJ) 100 90 80 70 60 50 40 30 20 10 A+B Reaction coordinate C+D a. Is the forward reaction endothermic or exothermic? Calculate the value of AH for this reaction. b. What is the value of the potential energy of the activated complex? c. Calculate the activation energy (EA) for the forward reaction. d. Draw a dashed line to show the effect of adding a catalyst to the system which decreases EA by 20 KJ. e. Name 4 things that speed up a reaction:

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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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What are the answers for #1 a through e

Application: Chemical Kinetics 1) The graph below is a potential energy diagram for the hypothetical reaction: A + B + C + D Potential energy (kJ) 100 90 80 70- 60 50 40 30 20 10 0 A+B Reaction coordinate a. Is the forward reaction C+D endothermic or exothermic? Calculate the value of AH for this reaction. b. What is the value of the potential energy of the activated complex? c. Calculate the activation energy (EA) for the forward reaction. d. Draw a dashed line to show the effect of adding a catalyst to the system which decreases EA by 20 kJ. e. Name 4 things that speed up a reaction: 2) On the graph below, draw a potential energy diagram for the following reaction: Q+R → S +T given the following information: PE of Q + R = 150 kJ Potential energy (kJ) PE of S + T = 250 kJ PE of the activated complex = 375 kJ 400 350- 300 250- 200 150 100 50 Reaction coordinate a. Is the forward reaction endothermic or exothermic? Calculate the value of AH for this reaction. b. Calculate the EA for the forward reaction. c. What is the total potential energy content of the activated complex? d. Draw a dashed line to show the effect of adding a catalyst to the system
Transcribed Image Text:Application: Chemical Kinetics 1) The graph below is a potential energy diagram for the hypothetical reaction: A + B + C + D Potential energy (kJ) 100 90 80 70- 60 50 40 30 20 10 0 A+B Reaction coordinate a. Is the forward reaction C+D endothermic or exothermic? Calculate the value of AH for this reaction. b. What is the value of the potential energy of the activated complex? c. Calculate the activation energy (EA) for the forward reaction. d. Draw a dashed line to show the effect of adding a catalyst to the system which decreases EA by 20 kJ. e. Name 4 things that speed up a reaction: 2) On the graph below, draw a potential energy diagram for the following reaction: Q+R → S +T given the following information: PE of Q + R = 150 kJ Potential energy (kJ) PE of S + T = 250 kJ PE of the activated complex = 375 kJ 400 350- 300 250- 200 150 100 50 Reaction coordinate a. Is the forward reaction endothermic or exothermic? Calculate the value of AH for this reaction. b. Calculate the EA for the forward reaction. c. What is the total potential energy content of the activated complex? d. Draw a dashed line to show the effect of adding a catalyst to the system
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