Polarity and Boiling Point

[Jonathan Pai 2I]

Why does higher polarity lead to higher boiling point???

[Ariel Cheng 2I]

Molecules with higher polarity have greater dispersion forces and therefore stronger dipole-dipole interactions. This greater intermolecular attraction force leads to a higher boiling point. This explains why water (with all its hydrogen bonds) has a high boiling point.

[yea-lyn pak_1G]

Since a higher polarity means the atom/molecule has a stronger negatively charged end and a stronger positively charged end, this leads to greater dipole-dipole interactions between atoms/molecules. Thus, it's harder to pull apart the atoms or molecules and requires a higher boiling point.

[Michelle Nwufo 2G]

Following up with this question, why does high covalent character mean high boiling point?