Liquid nitrogen and dry ice questions?
Dry ice is mainly used for keeping things cold without having to worry about melted water, it also has more coldness per unit weight than regular ice. Liquid nitrogen is used to keep different types of instruments cold and it’s also used just to store nitrogen; to use the nitrogen they just let it turn into a gas. Liquid nitrogen takes up less space than gaseous nitrogen. If you actually breathed in nitrogen that is still liquid, it would freeze your lungs and damage them, you’d die. Breathing in the nitrogen fumes from vaporized liquid nitrogen would not hurt for a little while, but you have to get some oxygen in sometime or you would suffocate. If liquid nitrogen comes in contact with your skin, it can damage it, killing off the skin cells it touches. They “burn” off warts with liquid nitrogen to kill off the wart.
