Question

Why do polar compounds tend to have higher melting boiling points than nonpolar compounds?

Answer 1

Because substances with hydrogen bonding will have much higher melting and boiling points than substances with ordinary dipole-dipole forces. Non-polar molecules have the lowest melting and boiling points because they are held together by the weak van der Waals forces. 

Answer 2

Nonpolar molecules only have Van der Waals forces between them.

Step-by-step explanation:

Ap3x