Chapter 11, Problem 11F.4P

Interpretation Introduction

Interpretation:

The dissociation energy of the upper electronic state of ${\text{O}}_{\text{2}}$ has to be calculated.

Concept introduction:

Vibration is a type of internal mode of motion of a diatomic molecule.  In it, the internuclear separation between the atoms decreases and increases periodically which gives rise to spectra.  As the vibrational quantum number increases, there reaches a state when the internuclear distance becomes too large and the bond dissociates.  The energy needed to reach this vibrational quantum number is termed as dissociation energy.