Chapter 12, Problem 12.29AP

Interpretation Introduction

(a)

Interpretation:

The $\text{C}-\text{H}$ bonds are to be arranged in the order of increasing strength. Also, an explanation corresponding to their increased order is to be stated.

Concept introduction:

The infrared spectrometer detects the absorption of the sample that varies with the wavenumber. The unit of wavenumber is ${\text{cm}}^{-1}$. The wavenumber of a molecule is directly proportional to the frequency of the vibration of the bonds.

Interpretation Introduction

(b)

Interpretation:

When the bond dissociation energy of $\equiv \text{C}-\text{H}$ is $558\text{kJ}{\text{mol}}^{-1}$, the bond dissociation energy of the $\text{C}-\text{H}$ bond in ${\text{RCH}}_{\text{2}}-\text{H}$ is to be calculated.

Concept introduction:

The energy that is required to break a bond is known as bond dissociation energy. The bond dissociation energy is directly proportional to the strength of the bond. The stronger bond will have high bond dissociation energy and vice-versa.