   Chapter 14.7, Problem 1.1ACP

Chapter
Section
Textbook Problem

Catalase can decompose hydrogen peroxide to O2 and water about 107 times faster than the uncatalyzed reaction. If the latter requires one year, about how much time is required by the enzyme-catalyzed reaction?

Interpretation Introduction

Interpretation: The time required by the enzyme-catalyzed reaction has to be given.

Concept introduction:

Rate law or rate equation: The relationship between the reactant concentrations and reaction rate is expressed by an equation.

aA + bBxXRate of reaction = k [A]m[B]nTotalorderof reaction = (m + n)

Order of a reaction: The order of a reaction with respect to a particular reactant is the exponent of its concentration term in the rate law expression, and the overall reaction order is the sum of the exponents on all concentration terms.

Rate constant, k: It is a proportionality constant that relates rate and concentration at a given temperature.

Explanation

Catalyzedreactionrateis107fasterthanuncatalyzedreaction.Timerequiredbytheenzymecatalyzedreactionis

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