10 of 11Part AA certain reaction has an activation energy of 64.0 kJ/mol and a frequency factor of Aj = 8.90x102 What is the rate constant, k, of this reactionat 24.0 °C ?Express your answer numerically.> View Available Hint(s)Templates Symbols undo regdo Teset keyboard shortcuts helpk =SubmitThe linear form of the Arrhenius equationThe Arrhenius equation can be rearranged to a form that resembles the equation for a straight line:(수) (수) +In kIn Ambwhere y is In k, m is the slope orzİs , and b is the y-intercept or In A. The linearity of this equation is illustrated graphically in the image.(Figure 1)Part BAn unknown reaction was observed, and the following data were collected:T.(K)(M s352109426185Determine the activation energy for this reaction.Express your answer in kilojoules per mole.> View Available Hint(s)Templates Symbols undo redo feser keyboard shortcuts HelpkJ/molSubmitNext >Provide Feedback

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- Part A A certain reaction has an activation energy of 64.0 kJ/mol and a frequency factor of A, = 8,90x10 What is the rate constant, k, of this reaction at 24.0 °C ? Express your answer numerically. > View Available Hint(s) Templates Symbols undo PesEr keyboard shortcuts help redo Submit

- Part A A certain reaction has an activation energy of 64.0 kJ/mol and a frequency factor of A, = 8,90x10 What is the rate constant, k, of this reaction at 24.0 °C ? Express your answer numerically. > View Available Hint(s) Templates Symbols undo PesEr keyboard shortcuts help redo Submit

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter11: Chemical Kinetics

Section: Chapter Questions

Problem 98CWP: A certain reaction has the form aAProducts At a particular temperature, concentration versus time...

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For a certain reaction, Ea is 135 kJ and H=45 kJ. In the presence of a catalyst, the activation energy is 39% of that for the uncatalyzed reaction. Draw a diagram similar to Figure 11.14 but instead of showing two activated complexes (two humps) show only one activated complex (i.e., only one hump) for the reaction. What is the activation energy of the uncatalyzed reverse reaction?
Experiments have shown that the average frequency of chirping by a snowy tree cricket (Oecanthus fultoni) depends on temperature as shown in the table. Chirping Rate (per min) Temperature (C) 178 25.0 126 20.3 100. 17.3 What is the apparent activation energy of the process that controls the chirping? What is the rate of chirping expected at a temperature of 7.5C?
The hydrolysis of the sugar sucrose to the sugars glucose and fructose, C12H22O11+H2OC6H12O6+C6H12O6 follows a first-order rate equation for the disappearance of sucrose: Rate =k[C12H22O11] (The products of the reaction, glucose and fructose, have the same molecular formulas but differ in the arrangement of the atoms in their molecules.) (a) In neutral solution, k=2.11011s1 at 27 C and 8.51011s1 at 37 C. Determine the activation energy, the frequency factor, and the rate constant for this equation at 47 C (assuming the kinetics remain consistent with the Arrhenius equation at this temperature). (b) When a solution of sucrose with an initial concentration of 0.150 M reaches equilibrium, the concentration of sucrose is 1.65107M . How long will it take the solution to reach equilibrium at 27 C in the absence of a catalyst? Because the concentration of sucrose at equilibrium is so low, assume that the reaction is irreversible. (c) Why does assuming that the reaction is irreversible simplify the calculation in pan (b)?
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