How do London dispersion forces affect boiling point?

1 Answer
Feb 21, 2017

They increase the intermolecular attractions, so more energy is needed to separate the molecules from each other.

Explanation:

The more electrons a molecule has, the greater the intermolecular attractions.

Also, a larger size increases the London dispersion forces.

The increased attraction of the molecules to each other means that more energy is needed to separate them from each other.

Hence, the boiling point increases.