Chapter 11, Problem 11.78PAE

Interpretation Introduction

Interpretation:

Very large and very small rate constant possessing reaction should be selected from, (a) Dynamic exploding, (b) Iron rusting and (c) paper burning.

Concept introduction:

Arrhenius equation is used to find the rate constant of a reaction.

Normal rate law is relating the concentration of the reactants; but not temperature or effect from catalysts to the rate of reaction. Therefore, rate constant represents all the changing factors including temperature.

$k=A{e}^{\raisebox{1ex}{$-Ea$}\!\left/ \!\raisebox{-1ex}{$RT$}\right.}$

$\begin{array}{l}k=rateconstant\\ A=frequencyfactor\\ E_a=activationenergy\\ \begin{array}{l}R=universalgasconstant\hfill \\ T=Kelvintemperature\hfill \end{array}\end{array}$

If any reaction happens in normal conditions, it can be predicted that it has a low activation energy.