Chapter 5, Problem 5.39AP

Interpretation Introduction

(a)

Interpretation:

The bond that breaks in the thermal cracking of $2,2,3,3\text{-tetramethylbutane}$ is to be stated.

Concept introduction:

Thermal cracking is a process through which simple and shorter hydrocarbon chains are produced from longer and bulky hydrocarbons chains. The active species such as free radical governs the thermal cracking process. The gasoline is obtained from gas oil by the process of thermal cracking.

Interpretation Introduction

(b)

Interpretation:

Among the compounds, $2,2,3,3\text{-tetramethylbutane}$ and ethane the one that undergoes thermal cracking more rapidly at a given temperature is to be stated.

Concept introduction:

Thermal cracking is a process through which simple and shorter hydrocarbon chains are produced from longer and bulky hydrocarbons chains. The active species such as free radical governs the thermal cracking process. The gasoline is obtained from gas oil by the process of thermal cracking.

Interpretation Introduction

(c)

Interpretation:

The values of $\Delta H°$ for the initial carbon-carbon bond breaking for the thermal cracking of both $2,2,3,3\text{-tetramethylbutane}$ and ethane are to be calculated.

Concept introduction:

Thermal cracking is a process through which simple and shorter hydrocarbon chains are produced from longer and bulky hydrocarbon chains. The active species such as free radical governs the thermal cracking process. The gasoline is obtained from gas oil by the process of thermal cracking. The minimum amount of energy needed to dissociate a bond is known as the bond dissociation energy (BDE). The term bond dissociation energy is only used for diatomic species.