Chapter 5, Problem 5.24P

Interpretation Introduction

(a)

Interpretation:

The $\Delta H°$ value of the reaction shown in the second propagation step for an equation 5.52b on page 207 is to be estimated.

Concept introduction:

The bond dissociation energy is denoted by $\Delta \text{H}°$. It is the energy required to break the bond between two atoms in the chemical reaction. In other words, it describes the strength of a bond in the chemical reaction. The breaking of a bond takes place by the absorption of energy.

Interpretation Introduction

(b)

Interpretation:

The $\Delta H°$ value for the propagation step involved in the addition of hydrogen chloride instead of hydrogen bromide to an alkene is to be estimated.

Concept introduction:

The bond dissociation energy is denoted by $\Delta \text{H}°$. It is the energy required to break the bond between two atoms in the chemical reaction. In other words, it describes the strength of a bond in the chemical reaction. The breaking of a bond takes place by the absorption of energy.

Interpretation Introduction

(c)

Interpretation:

The reason as to why no peroxide effect is observed for the addition of hydrogen chloride to an alkene is to be stated.

Concept introduction:

The bond dissociation energy is denoted by $\Delta \text{H}°$. It is the energy required to break the bond between two atoms in the chemical reaction. In other words, it describes the strength of a bond in the chemical reaction. The breaking of a bond takes place by the absorption of energy.