Multiple Choice1. Which of the following ways of increasing the rate of reaction involves increasing the frequencyof collisions?Adding a catalystb. Decreasing the concentration of reactantsc. Decreasing the surface area of reactantsa.d. Increasing the surface area of reactantse. Cooling the reaction.To answer questions 2 and 3, please refer to the energypotential diagram on the right that describes a chemicalreaction that happens in three elementary steps.Potential Energy graph of ReactionMechanismAActivatedcomplex2. According to the diagram, which of the following isActivatedcomplescorrect?Activatedcomplexa.TheactioendothermicReactants2NO 2H,IntermediateThe first step is the slowest stepThe second step is the rate determining stepThe reaction is catalyzedA reactive intermediate is produced in the lastb.c.IntermediateN0 H0 Hd.N + 240Productse.Reaction progressstep3. According to the diagram, which of the following is correct?The reaction involves only gases.a.b.The potential energy of the reactants is greater than the products.The change in enthalpy is equal to the energy at E minus the energy at B.The reverse reaction is probably slower than the forward reaction.The activation energy is equal to the energy at A minus the energy of the reactants.C.d.e.

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1. Which of the following ways of increasing the rate of reaction involves increasing the frequency of collisions? a. Adding a catalyst b. Decreasing the concentration of reactants c. Decreasing the surface area of reactants d. Increasing the surface area of reactants e. Cooling the reaction.

1. Which of the following ways of increasing the rate of reaction involves increasing the frequency of collisions? a. Adding a catalyst b. Decreasing the concentration of reactants c. Decreasing the surface area of reactants d. Increasing the surface area of reactants e. Cooling the reaction.

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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