Since boiling point is a physics property, intermolecular pressures will recognize the answer. The substance through the the strongest intermolecular forces will have the highest boiling suggest because the most energy will be required to different liquid particles" attraction.

Intermolecular pressures depend top top structure. Oxygen and Nitrogen are both no polar molecules, so they have london dispersion forces (LDF). LDF space stronger because that molecules of greater molar masses. Due to the fact that O2 has a higher molar mass 보다 N2 (32 and also 28 g/mol, respectively), O2 has a an ext polarizable electron cloud than N2. This method that partial, temporary charge produced in O2 is of greater magnitude than that that N2.

NO is a polar molecule. Polar molecules have actually dipole-dipole forces.

Dipole-dipole forces are more powerful than London Dispersion forces, therefore NO has actually the greatest boiling point. O2 has stronger LDF 보다 N2, for this reason O2 has actually the second highest boil point.

N2 2


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