Hydrogen peroxide decomposes to water and oxygen gas with the aid of a catalyst (MnO2). The activation energy of the uncatalyzed reaction is 70.0kjmol-1. when the catalyst is added, the activation energy at 20.00C is 42.0kjmol-1. Theoretically, to what temperature (0C) would one have to heat the hydrogen peroxide solution so that the rate of the uncatalyzed reaction is equal to the rate of the catalyzed reaction at 20.00C? Assume that the frequency factor A is constant, and assume the initial concentrations are the same.

Since using a catalyst basically decreases the activation energy and hence it increases the rate…

Answered: Hydrogen peroxide decomposes to water…

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

Chapter12: Chemical Kinetics

Section: Chapter Questions

Problem 85E: A popular chemical demonstration is the magic genie procedure, in which hydrogen peroxide decomposes...

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Hydrogen peroxide decomposes to water and oxygen gas with the aid of a catalyst (MnO₂). The activation energy of the uncatalyzed reaction is 70.0kjmol^-1. when the catalyst is added, the activation energy at 20.0⁰C is 42.0kjmol^-1. Theoretically, to what temperature (⁰C) would one have to heat the hydrogen peroxide solution so that the rate of the uncatalyzed reaction is equal to the rate of the catalyzed reaction at 20.0⁰C? Assume that the frequency factor A is constant, and assume the initial concentrations are the same.

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