SOLID NITROGEN

SOLID NITROGEN. To make a solid nitrogen, liquid nitrogen is poured into the container and place the vacuum unit. Begin to pump air pressure drops, the liquid nitrogen starts to cool and the solid state switch. We get solid nitrogen. If you open the cover of the vacuum unit, the pressure increases, solid nitrogen is quickly transferred to a liquid state. Again, make solid nitrogen. We include the evaporator. The solid nitrogen will evaporate without going through the liquid state.

Nitrogen - element of the group 15 of the second period of the periodic table of chemical elements of Mendeleev, atomic number 7. Refers to pniktogenam. Represented by the symbol N (lat. Nitrogenium). Simple substance nitrogen - diatomic gas without color, taste and smell. One of the most abundant elements on earth. Very chemically inert, but reacts with the transition metal complex compounds. The main components of air (78.09% by volume) is obtained whose division industrial nitrogen (more than ¾ is in the ammonia synthesis). It is used as the inert medium to a plurality of processes; Liquid nitrogen - refrigerant. Nitrogen - one of the basic nutrients that make up the proteins and nucleic acids.

TV Sofokl Science Experiment LIQUID NITROGEN vs PEPSI