Leaming Goal:• Part ATo help you understand how to interpret potential energy diagrams.What is the value of the activation energy of the uncatalyzed reaction?The graphs shown here are called potential energy diagrams. They show the potential energy ofa system as it changes from reactants to products. The first graph shows the uncatalyzedreaction (Figure 1); the second graph shows the catalyzed reaction (Figure 2).Express your answer to three significant figures and include the appropriate units.> View Available Hint(s)Symbols undo redo teset keyboard shortcuts HelpTempietesactivation energy = |175kJSubmitPrevlous AnswereX Incorrect; Try Again; 5 attempts remaining• Part BWhat is the value of the enthalpy change of the uncatalyzed reaction?Express your answer to three significant figures and include the appropriate units.FigureO 1 of 2 >• View Available Hint(s)Uncatalyzed ReactionTempletesSymbols undo regdo feset keyboard shortcuts help125kJAH =reactants200SubmitPrevloue Anewers100productsX Incorrect; Try Again; 5 attempts remainingReaction coordinateRat C Leaming Goal:Part CTo help you understand how to interpret potential energy diagrams.What is the value of the activation energy of the uncatalyzed reaction in reverse?The graphs shown here are called potential energy diagrams. They show the potential energy ofa system as it changes from reactants to products. The first graph shows the uncatalyzedreaction (Figure 1); the second graph shows the catalyzed reaction (Figure 2).Express your answer as an integer and include the appropriate units.• View Available Hint(s)Tempjetes Symbols undo redo teset keyboard shortcuts Helpactivation energy = 300kJSubmitPrevlous AnswereX Incorrect; Try Again; 5 attempts remainingPart DWhat is the value of the enthalpy change of the uncatalyzed reaction in reverse?Express your answer to three significant figures and include the appropriate units.Figure1 of 2> View Available Hint(s)Uncatalyzed Reaction400Tempjetes Symbols undo redo teset keyboard shortcuts Heip300AH - 125J200 eactantsSubmitPrevloue Anewers100productsX Incorrect; Try Again; 4 attempts remainingReacion coordinatePotential energy (k) mol")

Introduction: Activation energy is the amount of energy required to initiate the reaction. The…

eaming Goal: o help you understand how to interpret potential energy diagrams. Part A What is the value of the activation energy of the uncatalyzed reaction? he graphs shown here are called potential energy diagrams. They show the potential energy of system as it changes from reactants to products. The first graph shows the uncatalyzed action (Figure 1): the second graph shows the catalyzed reaction (Figure 2). Express your answer to three significant figures and include the appropriate units. > View Available Hint(s) Tempjetes Symbols undo' redo teset keyboard shortcuts Help activation energy = 175 kJ Submit Previous Anewere * Incorrect; Try Again; 5 attempts remaining Part B What is the value of the enthalpy change of the uncatalyzed reaction? Express your answer to three significant figures and include the appropriate units. 1 of 2 ure • View Available Hint(s) Uncatalyzed Reaction Tempjetes Symbols undo' reglo teset keyboard shortcuts Heip 400 E 300 - 125 kJ AH= reactants 200 Submit Prevlous Answere 100 products X Incorrect; Try Again; 5 attempts remaining Reacion coordinate Potential energy (kJ mol)

eaming Goal: o help you understand how to interpret potential energy diagrams. Part A What is the value of the activation energy of the uncatalyzed reaction? he graphs shown here are called potential energy diagrams. They show the potential energy of system as it changes from reactants to products. The first graph shows the uncatalyzed action (Figure 1): the second graph shows the catalyzed reaction (Figure 2). Express your answer to three significant figures and include the appropriate units. > View Available Hint(s) Tempjetes Symbols undo' redo teset keyboard shortcuts Help activation energy = 175 kJ Submit Previous Anewere * Incorrect; Try Again; 5 attempts remaining Part B What is the value of the enthalpy change of the uncatalyzed reaction? Express your answer to three significant figures and include the appropriate units. 1 of 2 ure • View Available Hint(s) Uncatalyzed Reaction Tempjetes Symbols undo' reglo teset keyboard shortcuts Heip 400 E 300 - 125 kJ AH= reactants 200 Submit Prevlous Answere 100 products X Incorrect; Try Again; 5 attempts remaining Reacion coordinate Potential energy (kJ mol)

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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General Chemistry 4th Edition McQuarrie • Rock • Gallogly University Science Books presented by Macmillan Learning The reaction C,H, (g) → 2 C,H,(g) has an activation energy of 262 kJ/mol. At 600.0 K, the rate constant, k, is 6.1 × 10-8 s-1. What is the value of the rate constant at 750.0 K? k = 1.34 x103 Incorrect
Use the information given in the following paragraph and energy diagram to answer questions 5-10. The mechanism for the reaction 2A D is illustrated in the following energy diagram where the X- axis is "reaction progress" and the Y-axis is "enthalpy". A is the reactant and D is the product. The reaction has a rate constant of 5.0x102² Mr¹ sec" when no catalyst is present. The equilibrium constant for the overall reaction at 25°C is K [D] = -=1.1×102. [A]² R D 9. You proposed the following mechanism for the overall reaction 2A D based on the energy diagram Step 1. A B (slow), with forward rate constant, k₂ (fast equilibrium), with forward rate constant, k₁, reverse rate constant k.] and equilibrium constant, K₁. Step 2. B 2C Step 3. A+2C D (fast), with forward rate constant, k3 Your classmate pointed out that your mechanism is incorrect. Why is your mechanism incorrect? a. Your mechanism does not incorporate the use of a catalyst b. Your mechanism is not consistent with the experimental…
A burner in a gas stove breaks propane and oxygen up to form carbon dioxide and water, thereby heating a home. Which part is the source of the activation energy required, and is this reaction endothermic or exothermic? The flame from the burner provides the energy to perform the reaction. The reaction is endothermic. The burning propane gas provides the energy to perform the reaction. The reaction is exothermic. The burning propane gas provides the energy to perform the reaction. The reaction is endothermic. The flame from the burner provides the energy to perform the reaction. The reaction is exothermic.
3) Which of the following is NOT true about a catalyst? A.It may be homogeneous B. It speeds up the reverse reaction C. It is consumed D. It speeds up the forward reaction E. it may be heterogeneous
3. The following mechanism is proposed for the reaction of chlorine with chloroform: Cl, + CHCI, CCI, + HCI Cl, Step 1 fast equilibrium 2Cl CHCI, +CI » HCI +CCI, CCI, +Cl»cCI, Step 2 slow Step 3 fast a) Show that this mechanism gives the correct, overall balanced reaction equation. b) Write the rate law predicted by this mechanism.
What is the difference between exergonic and exothermic? What is the difference between intermediate and transition state? What is the relation between activation energy and the rate of a reaction?
An average reaction rate is calculated as the change in the concentration of reactants or products over a period of time in the course of the reaction. An instantaneous reaction rate is the rate at a particular moment in the reaction and is usually determined graphically. The reaction of compound A forming compound B was studied and the following data were collected: Time (s) [A] (M) 0. 200. 500. 800. 1200. 1500. 0.184 0.129 0.069 0.031 0.019 0.016 Part A What is the average reaction rate between 0. and 1500. s? Express your answer to three significant figures and include the appropriate units. ▸ View Available Hint(s) rate= Submit Part B rate= Submit Part C O What is the average reaction rate between 200. and 1200. s? Express your answer to three significant figures and include the appropriate units. ► View Available Hint(s) rate = Submit μA Value μA Value O Di Units What is the instantaneous rate of the reaction at t = 800. s? Express your answer to two significant figures and…
Consider kinetic data for a certain reaction: Time (s) 0 1 2 3 4 5 1.7 Find the order of reaction and determine the concentration of the reactant after 7 seconds. 2.2 1.9 1.6 Reactant (mM) 1.8 5.4 4.6 3.9 3.2 2.7 2.3
Deducing a rate law from initial reaction rate data Some measurements of the initial rate of a certain reaction are given in the table below. [H₂] [] initial rate of reaction 0.336M 2.08M 0.338 M/s 1.12M 2.08 M 1.13M/s. 0.336M 2.39M 0.388 M/s Use this information to write a rate law for this reaction, and calculate the value of the rate constant k. Round your value for the rate constant to 2 significant digits. Also be sure your answer has the correct unit symbol. rate=& = 0 k= Contenti 0. 00 0° 0.0 X