The rate law reaction of decomposition of NOBr and half-life is given. The rate constant for the given value of half life is to be calculated. Also, the time required for the given change in the concentration of NOBr is to be calculated. Concept introduction: The change observed in the concentration of a reactant or a product per unit time is known as the rate of the particular reaction. The differential rate law provides the rate of a reaction at specific reaction concentrations. To determine : The rate constant for 2 .00 s half life.

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Chapter 11, Problem 54E

(a)

Interpretation Introduction

Interpretation: The rate law reaction of decomposition of NOBr and half-life is given. The rate constant for the given value of half life is to be calculated. Also, the time required for the given change in the concentration of NOBr is to be calculated.

Concept introduction: The change observed in the concentration of a reactant or a product per unit time is known as the rate of the particular reaction. The differential rate law provides the rate of a reaction at specific reaction concentrations.

To determine: The rate constant for 2.00 s half life.

(b)

Interpretation Introduction

Interpretation: The rate law reaction of decomposition of NOBr and half-life is given. The rate constant for the given value of half life is to be calculated. Also, the time required for the given change in the concentration of NOBr is to be calculated.

Concept introduction: The change observed in the concentration of a reactant or a product per unit time is known as the rate of the particular reaction. The differential rate law provides the rate of a reaction at specific reaction concentrations.

To determine: The time taken by 0.900 M NOBr to decrease to a concentration to 0.100 M .

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