Why is liquid nitrogen so cold?

1 Answer
anor277
Nov 14, 2015

Nitrogen is a pure, elemental substance. Any such substance has constant physical properties such as melting point, and boiling point.

Explanation:

Nitrogen is characterized by a boiling point of #-196^"o"# #C#. At this temperature its vapour pressure is #1# #atm#. Why is the boiling point of nitrogen so low? Well, only weak dispersion forces operate between the nitrogen molecules.

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