Chapter 11, Problem 85AE

Interpretation Introduction

Interpretation: The rate constants of two first order reactions that have equal concentrations at $t=\text{0}$ are given. The time is to be calculated for the given condition.

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.

To determine: The time that must pass to reach a condition of $\left[\text{A}\right]=\text{4}\text{.00}\left[\text{B}\right]$.