Chapter 4, Problem 46CTQ

a)

Interpretation Introduction

Interpretation: Vertical arrow that indicates size and direction of $E_{\text{act}}$ for reaction should be determined.

Concept introduction: Minimum amount of energy required by reactant molecules in order to undergo chemical reaction is called activation energy. It is denoted by $E_{\text{act}}$ . It is measured in $\text{J/mol}$ , $\text{kJ/mol}$ or $\text{kcal/mol}$ .

b)

Interpretation Introduction

Interpretation: Whether assumption of $E_{\text{act}}$ nearly equal to $+1\text{ p}{K}_{\text{a}}\text{ unit}$ for all acid-base reactions is consistent with fact that activation energy arrow is in upward direction or not should be determined.

Concept introduction: Minimum amount of energy required by reactant molecules in order to undergo chemical reaction is called activation energy. It is denoted by $E_{\text{act}}$ . It is measured in $\text{J/mol}$ , $\text{kJ/mol}$ or $\text{kcal/mol}$ .