What is the value of the activation energy of the uncatalyzed reaction? Express your answer to three significant figures and include the appropriate units. ▸ View Available Hint(s) activation energy = Value Submit Part B HA HA ΔΗ = Value Submit What is the value of the enthalpy change of the uncatalyzed reaction? Express your answer to three significant figures and include the appropriate units. ▸ View Available Hint(s) Units Units www. www ? ?

What is the value of the activation energy of the uncatalyzed reaction? Express your answer to three significant figures and include the appropriate units. ▸ View Available Hint(s) activation energy = Value Submit Part B HA HA ΔΗ = Value Submit What is the value of the enthalpy change of the uncatalyzed reaction? Express your answer to three significant figures and include the appropriate units. ▸ View Available Hint(s) Units Units www. www ? ?

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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[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.
Consider the reaction data. A products T (K) | k (s-1) 325 0.383 825 0.611 What two points should be plotted to graphically determine the activation energy of this reaction? To avoid rounding errors, use at least three significant figures in all values. X1 Yi = X2 = Y2 = Determine the rise, run, and slope of the line formed by these points. rise: run: slope: What is the activation energy of this reaction? Ea J/mol ? II
Consider the reaction data. A-products T (K)& (s- 325 0.376 875 0.719 What two points should be plotted to graphically determine the activation energy of this reaction? To avoid rounding errors, use at least three significant figures in all values. yi = X2 = Determine the rise, run, and slope of the line formed by these points. rise: run: slope: What is the activation energy of this reaction? J/mol Ea =
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12:27 12-2 Analyzing Data... NAME Energy (kJ) NAME 1000 Many chemical reactions involve a change in energy. When the energy of the reactants is greater than the energy of the products, the reaction gives off heat and is exothermic. When the energy of the products is greater than that of the reactants, the reaction must absorb energy from the surroundings to occur and is endothermic. If the intermediate stage (the activated complex) is of a higher energy, then the reaction can only take place if the reactants are given an initial energy input (the activation energy). The graph shows energy diagrams that indicate how the energy changes as three reactions occur. Energy Changes for Three Reactions 800 600 Dashboard 400 200 DATE 0 ANALYZING DATA Interpret Energy Diagrams CLASS Direction of reaction 000 000 Calendar DATE .5GE 14 A D Copyright © Savvas Learning Company LLC. All Rights Reserved. Savvas is not responsible for any modifications made by end users to the content posted in its…