R F G B H 8.3 АРР Application: Chemical Kinetics 1) The graph below is a potential energy diagram for the hypothetical reaction: A + B C + D 100 90 80 70 Potential energy (kJ) 60 50 40 30 20 10 0 A+B Reaction coordinate C+D a. Is the forward reaction endothermic or exothermic? Calculate the value of AH for this reaction. A+B-SCHD 2) 100k) c. Calculate the activation energy (EA) for the forward reaction. Product AltCO d. Draw a dashed line to show the effect of adding a catalyst to the system which decreases EA by 20 kJ. 22-30K) e. Name 4 things that speed up a reaction: On en re Q given F Potential energy (kJ) reactant AH-H (product-1+{reactant 1048=-3065 b. What is the value of the potential energy of the activated complex?

R F G B H 8.3 АРР Application: Chemical Kinetics 1) The graph below is a potential energy diagram for the hypothetical reaction: A + B C + D 100 90 80 70 Potential energy (kJ) 60 50 40 30 20 10 0 A+B Reaction coordinate C+D a. Is the forward reaction endothermic or exothermic? Calculate the value of AH for this reaction. A+B-SCHD 2) 100k) c. Calculate the activation energy (EA) for the forward reaction. Product AltCO d. Draw a dashed line to show the effect of adding a catalyst to the system which decreases EA by 20 kJ. 22-30K) e. Name 4 things that speed up a reaction: On en re Q given F Potential energy (kJ) reactant AH-H (product-1+{reactant 1048=-3065 b. What is the value of the potential energy of the activated complex?

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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Kinetics tial energy d reaction: C+D his Potential energy (kJ) 2) On the graph below, draw a potential energy diagram for the following reaction: Q+RS + T given the following information: PE of Q+R = 150 kJ PE of S+T = 250 kJ PE of the activated complex = 375 kJ 400 350- 300 250 200 150 100 50 al ? O Reaction coordinate a. Is the forward reaction endothermic or exothermic? Calculate the value of AH for this reaction. b. Calculate the Ex 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
[Review Topics] [References] Use the References to access important values if needed for this question. A reaction profile (not to scale!) for the reaction C₂H4+ HC1 C₂H5 Cl is shown below: E (KJ) C₂H4 + HCI 70 205 Reaction Coordinate C₂HCI Which of the following are true? (Select all that apply.) OThe magnitude of Ea for the reverse reaction is larger than 205 kJ. Othe energy of the products is lower than the energy of the reactants. OThe value of AE in the presence of a catalyst would be smaller than -70.0 kJ. OAE is positive. OThe value of Ea in the presence of a catalyst would be larger than 205 kJ.
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Step 1) X(g) + Y(g) A(g) fast, reaches equilibrium (For Step 1, k1 = forward rate constant & k-1 = reverse rate constant.)Step 2) A(g) + Z(g) B(g) slow (k2 = rate constant) Step 3) B(g) P(g) fast (k3 = rate constant) a) What is the overall reaction? b) What is the rate law supported by this mechanism? Explain your answer. c) The following is experimental data found for this reaction: Initial [X] (M) Initial [Y] (M) Initial [Z] (M) Initial Rate (M/day) Exp 1 0.150 0.150 0.150 0.569 Exp 2 0.250 0.150 0.150 0.948 Exp 3 0.250 0.300 0.150 3.793 Exp 4 0.300 0.350 0.200 6.196 i) What is the experimentally determined rate law? ii) Determine the rate constant and include units. d) Does your experimentally determined rate law support the proposed mechanism? Explain your answer. e) ΔΔHo = -347 kJ/mol for the overall reaction. Draw a reasonable reaction profile for the proposed mechanism. Label your profile with the proper reactants,…
The reaction for the decomposition of ammonia into its elements is: 2 NH3 (g) → N2 (g) + 3 H2 (g) [N2] 0.0105 M If the concentrations at a certain time are: what will be the associated value of the reaction quotient (Q)? [NH3] = 0.505 M [H2] = 0.414 M, %3D %3D (A) (B) (C) (D) (E) 0.00148 0.00292 0.00861 0.0105 342
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