Question: Why does Liquid Nitrogen evapourate so fast

Iain Moal answered on 18 Mar 2014:

This is a good question. The reason is that the molecules of nitrogen can’t attach to each other very well, so it only takes a little bit of energy to cause the liquid to break apart into a gas. This is also why liquid nitrogen has such a low boiling temperature too, at minus 196 degrees, which is very cold.

This is very different from many other liquids, such as water. Water molecules can attach to each other through bonds called hydrogen bonds, and these require quite a lot of energy to break, so you need to put of lot of heat into water to make it boil quickly.