Chapter 8, Problem 8.44PAE

Interpretation Introduction

Interpretation:

Reasons for which dipole-dipole forces are typically stronger than dispersion forces should be explained.

Concept Introduction:

Dipole-dipole forces are the forces of attraction that exist between the positive terminal of a polar molecule and the negative terminal of another polar molecule. For example: dipole-dipole forces exist in polar molecules like HF, HI, HCl etc.

Dispersion forces are very weak intermolecular attractive forces that exist between two atoms in a molecule, when their electrons are arranged in unsymmetrical manner to create temporary dipoles. For example: dispersion forces exist in halogen molecules like ${\text{Cl}}_{\text{2}}{\text{, F}}_{\text{2}}$ etc.