How do you collect liquid nitrogen by cooling air under pressure?

Answer 1

ITEMS NEED * an amount of dry ice the size of your fist * 99% rubbing alchohol * scissors * big plastic coke bottle & little plastic coke bottle # use the scissors to poke holes on the bottom sides of the SMALL coke bottle (not the bottom, the bottom's sides) # cut the top part (just above where the brand label is) off both of the coke bottles # put the small bottle inside the big one, and place chunks of dry ice inside (chunks the size of ice cubes) # SLOWWWWLY pour in the the rubbing alchohol in until the large bottle is about half way full. PLEASE DO NOT BREATH THE VAPORS # when it stops boiling and goes more to a tiiiny bubbling, have fun with it. but be careful, stick your hand in it and it will freeze like an ice cube. do not let any of this to touch you. IT STICKS LIKE GLUE!! ----

Answer 2

They are sometimes available locally in a coolant store. But in larger qualities, it can be ordered specially. You would need to get a private telephone quote from a liquid-gas selling site that has a store near your location.

Answer 3

To collect liquid nitrogen by slowly cooling air under pressure, you would need to contain it (in a tank for example) and then slowly lower the temperature whilst collecting any other gases that freeze or turn into a liquid. When the temperature gets to -196°C the nitrogen should turn into a liquid, so you could then collect it.

Answer 4

Nitrogen gas exists in the air we breathe. In order to turn it into liquid, the nitrogen must be cooled to -320 degrees Fahrenheit in order to turn into liquid. Compressor machines are required to compress the air, cool it down, let the cooled gas expand again, and then cool it back down to -320. This produces a liquid of oxygen and nitrogen. In order to separate the nitrogen, the liquid is heated up to the boiling point of liquid nitrogen, and the vapour collected is pure liquid nitrogen.

Answer 5

Liquid nitrogen is collected by first compressing and cooling air to create a liquid-rich fraction. Next, this liquid-rich fraction is further cooled to the boiling point of nitrogen (-196°C), causing nitrogen gas to condense into liquid nitrogen which can be collected. This process typically involves fractional distillation in a specialized equipment known as a cryogenic distillation column.

Answer 6

The short awnser is by cooling it. The long awnser involves the process by which nitrogen is cooled. Look up the JT effect.