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Why do polar molecules have a higher boiling and melting point than nonpolar molecules?

April 26, 2017boiling Chemistry Mathematics melting molecules point polar

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Why do polar molecules have a higher boiling and melting point than nonpolar molecules?

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Because polar molecules bond together weakly through hydrogen bonds, and nonpolar molecules do not. The polar molecules need a little bit more energy to break those bonds, which translates into a higher boiling and melting point.