1. (Ch. 14) The hypochlorite ion (OCl-) is widely used for water disinfection. Below is the Arrhenius plot for the thermal decomposition, including the equation of the trendline. What is the activation energy (in kJ/mol) of this decomposition? A. 96.8 kJ/mol B. 1.40x103 kJ/mol C. 9.68x104 kJ/mol D. 24.92 kJ/mol E. 11645 kJ/mol In (k) -7 -8 -9 -10 -11 -12 2.7E-03 2.8E-03 2.9E-03 1/T (1/K) y=-11645x + 24.924 R² = 0.9752 3.0E-03 3.1E-03

1. (Ch. 14) The hypochlorite ion (OCl-) is widely used for water disinfection. Below is the Arrhenius plot for the thermal decomposition, including the equation of the trendline. What is the activation energy (in kJ/mol) of this decomposition? A. 96.8 kJ/mol B. 1.40x103 kJ/mol C. 9.68x104 kJ/mol D. 24.92 kJ/mol E. 11645 kJ/mol In (k) -7 -8 -9 -10 -11 -12 2.7E-03 2.8E-03 2.9E-03 1/T (1/K) y=-11645x + 24.924 R² = 0.9752 3.0E-03 3.1E-03

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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1,200 Determine the forward activation energy and change in for a reaction from the graph below. A) Ea =D 1000 kJ/mol, ΔH =D +200 kl/mol enthalpy 1,000 800 B) Ea = 600 kJ/mol, AH = +400 kJ/mol C) Ea = 600 kJ/mol, AH = -400 kJ/mol D) Ea = 1000 kJ/mol, AH = +800 kJ/mol E) Ea = 400 kJ/mol, AH = -400 kJ/mol %3D 600 %3D 400 200 Reaction progress Energy (kJ/mol)
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Question 6 of 25 Submit An experimental plot of In(k) vs. 1/T is obtained in lab for a reaction. The slope of the best-fit line for the graph is -4215 K. What is the value of the activation energy for the reaction in kJ/mol? kJ/mol 1 2 3 C 7 9. +/- x 10 0 LO 00
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7
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Page 11 ReactionThates (U State the effect of each on the rate of reaction as (1) increases, (D) decreases, or (N) no change. A. Increasing the temperature. B. Removing some of the reactants. C. Adding a catalyst! D. Placing the reaction flask in ice. E. Increasing the concentration of a reactant.
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