Chapter 19.6, Problem 19.6.2SR

Interpretation Introduction

Interpretation:

The rate constant of the given reaction at ${80}^{0}C$ should be calculated.

Concept introduction:

• In a reaction, rate constant and temperature depends on each other.

According to Arrhenius equation,

$\begin{array}{c}k=A{e}^{-E_a/RT}\\ \text{where,}\text{k}\text{=}\text{rate}\text{constant}\\ {\text{E}}_{\text{a}}\text{=}\text{activation}\text{energy}\\ \text{R}\text{=}\text{gas}\text{constant}\\ \text{T}\text{=}\text{absolute}\text{temperature}\end{array}$

• $\text{ln}\frac{{\text{k}}_{\text{1}}}{{\text{k}}_{\text{2}}}\text{=}\frac{{\text{E}}_{\text{a}}}{\text{R}}\left(\frac{\text{1}}{{\text{T}}_{\text{2}}}-\frac{\text{1}}{{\text{T}}_{\text{1}}}\right)$
• Activation Energy: It is the minimum quantity of energy needed to start a chemical reaction.