Chapter 6, Problem 6.45P

Interpretation Introduction

(a)

Interpretation: The number of bonds broken and formed in Step [1] is to be identified. The sign of $\Delta H°$ for this step is to be predicted.

Concept introduction: The chemical reaction in which energy is released during the formation of products is known as exothermic reactions. The energy released during the reaction is denoted by $\Delta H°$. Exothermic and endothermic reactions are opposite to each other. The value of $\Delta H°$ for exothermic and endothermic reactions is positive and negative respectively.

Interpretation Introduction

(b)

Interpretation: The number of bonds broken and formed in Step [2] is to be identified. The value of $\Delta H°$ is negative or positive to be predicted.

Concept introduction: The chemical reaction in which energy is released during the formation of products is known as exothermic reactions. The energy released during the reaction is denoted by $\Delta H°$. Exothermic and endothermic reactions are opposite to each other. The value of $\Delta H°$ for exothermic and endothermic reactions is positive and negative respectively.

Interpretation Introduction

(c)

Interpretation: The rate determining step is to be identified.

Concept introduction: The slow step in the reaction determines the rate of reactions. The chemical reaction in which energy is released during the formation of products is known as exothermic reactions. The energy released during the reaction is denoted by $\Delta H°$. Exothermic and endothermic reactions are opposite to each other. The value of $\Delta H°$ for exothermic and endothermic reactions is positive and negative respectively.

Interpretation Introduction

(d)

Interpretation: The structures for the transition state in both steps of the mechanism are to be drawn.

Concept introduction: The transition state is formed during the conversion of reactants into products in the chemical reaction. In an energy level diagram, it corresponds to the high potential energy along the y-axis.

Interpretation Introduction

(e)

Interpretation: An energy diagram is to be drawn if $\Delta H{°}_{\text{overall}}$ is negative for this two-step reaction.

Concept introduction: The chemical reaction in which energy is released during the formation of products is known as exothermic reactions. The energy released during the reaction is denoted by $\text{ΔH°}$. Exothermic and endothermic reactions are opposite to each other. The value of $\text{ΔH°}$ for exothermic and endothermic reactions is positive and negative respectively.