Chapter 6, Problem 6D.3E

Interpretation Introduction

Interpretation:

The Arrhenius parameters for the given reaction have to be evaluated.

Concept Introduction:

Activation energy$(E_a)$: The potential energy barrier that must be surmounted before reactants can be converted to products.

Arrhenius equation:

• Arrhenius equation is a formula that represents the temperature dependence of reaction rates
• The Arrhenius equation has to be represented as follows

$K=A{e}^{-E_a/RT}$

• $E_a$ represents the activation energy and it’s unit is kJ/mol
• R represents the universal gas constant and it has the value of $8.314J/K\times mol$
• T represents the absolute temperature
• A represents the frequency factor or collision frequency

The activation energy from the given information has to be calculated from the modified Arrhenius equation.

  $\ln \frac{k_1}{k_2}=\frac{E_a}{R}\left[\frac{1}{T_2}-\frac{1}{T_1}\right]$