Chapter 8.4, Problem 38LC

Interpretation Introduction

Interpretation: The relation between dipole interactions and dispersion forces needs to be explained.

Concept Introduction: The attraction between polar molecules is known as dipole-dipole interactions. These are weak interactions when two or more polar molecules or dipole-induced molecules come close to each other. These interactions are collectively known as Van der Waals interactions.

These interactions are present in all kinds of molecules and atoms. These interactions are produced when an atom or molecule collides with each other.

Explanation of Solution

The similarity between the two mechanisms is that they are due to interactions between molecules. Here, dispersion forces are present in all types of molecules but, dipole-dipole interactions can only be seen in polar molecules. Non-polar molecules do not have dipole-dipole interactions.