Chapter 14, Problem 14.65E

Interpretation Introduction

Interpretation:

The value of $D_{\text{e}}$ and Morse potential constant $a$ for $\text{HF}$ and $\text{HBr}$ molecule is to be calculated. The value of $a$ for $\text{HF}$ and $\text{HBr}$ is to be compared with the value of $a$ for $\text{HCl}$. The trend if observed is to be stated.

Concept introduction:

The term $D_{\text{e}}$ is dissociation energy of the molecule undergoing vibrations and $a$ is Morse potential constant for the potential energy diagram of the molecule undergoing vibrations.

Dissociation energy of the molecule is important to know the maximum value of vibrational quantum number for a molecule.