Chapter 11, Problem 69E

Interpretation Introduction

Interpretation: The activation energy and rate constant at $\text{555}\text{K}$ for the decomposition of $\text{HI}$ is given. By using these values, the rate constant at $\text{645}\text{K}$ is to be calculated.

Concept introduction: The energy difference between activated complex and reactants is known as activation energy. The relationship between the rate constant and temperature is given by the Arrhenius equation,

$k=A{e}^{\frac{-E_{\text{a}}}{RT}}$

To determine: The rate constant at $\text{645}\text{K}$ for the decomposition of $\text{HI}$.