BP of unsaturated Fatty Acid

When molecules in the same homologous series are compared, those with higher molecular mass will have higher boiling points, as the higher members have stronger Van der Waals forces of attraction.

However, when unsaturated and saturated molecules having similar chain lengths are compared, pi-electron cloud in the unsaturated ones are more easily distorted and dipolar attraction is induced. This contributes significantly to the intermolecular forces and hence making them have higher boiling points for unsaturated molecules.

Seems legit.