Question

why liquid nitrogen is kept in cool areas? explain. ​

Answer 1

Many low-temperature processes leverage nitrogen's cooling and freezing ... be frozen through LIN immersion or direct surface cooling prior to being placed in ... for liquid nitrogen cooling and freezing systems is an ongoing area of research.

Answer 2

Answer:

Because the liquid-to-gas expansion ratio of nitrogen is 1:694 at 20 °C (68 °F), a tremendous amount of force can be generated if liquid nitrogen is vaporized in an enclosed space. ... Because of its extremely low temperature, careless handling of liquid nitrogen and any objects cooled by it may result in cold burns.