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The first principle: Nitrogen liquifies at -196C, and air contains a lot of nitrogen. So you're going to get your liquid nitrogen out of air, right?
The second principle: If you compress air it heats up, and if you release the pressure it loses that heat--principle of entropy at work. Good so far?
The third principle is how this really works: if you compress the air, cool it down while it's compressed, and then release the pressure it will get even colder. So what you do is very simple: compress air, cool it and release the pressure. As the temperature of the air drops during pressure release, eventually it will pass through the magic -196C point and the nitrogen will condense out of it.
What else can I help you with?
What will be the state of liquid nitrogen after boiling?
when the liquid nitrogen is boiled then it will turn into nitrogen gas.
What phase is liquid nitrogen in at room temperature?
Liquid nitrogen is liquid.
How do you separate nitrogen gas from a mixture of nitrogen gas and liquid nitrogen?
You can separate nitrogen gas from liquid nitrogen by allowing the liquid nitrogen to evaporate at room temperature or by heating it to increase the rate of evaporation. The nitrogen gas will separate from the liquid nitrogen as it evaporates, leaving behind the liquid nitrogen.
What is colder - liquid nitrogen or liquid heluim?
Liquid helium is a lot colder than liquid nitrogen.
If liquid nitrogen freezes everything why is itself a liquid?
liquid nitrogen will not freeze everything. Hydrogen and helium will remain a gas when exposed to liquid nitrogen.
What is the solvent and solute in liquid nitrogen?
There is neither a solvent nor solute in liquid nitrogen as it is not a solution. Liquid nitrogen is pure elementalnitrogen in liquid form.
How can prepare nitrogen liquid?
The liquid nitrogen is prepared by fractional distillation of liquid air.
What if liquid nitrogen was poured on the floor?
Liquid nitrogen is quickly evaporated.
Is liquid nitrogen a fluid or a solid?
liquid nitrogen is probably a fluid.
Is liquid nitrogen an element or compound?
Liquid nitrogen is a compound, specifically dinitrogen (N2), since it consists of nitrogen molecules made up of two nitrogen atoms bonded together. It is the liquid form of the nitrogen gas found in our atmosphere.
What is the melting point of liquid nitrogen?
Liquid nitrogen has no melting point. A melting point is the temperature when a solid turns into a liquid. Since liquid nitrogen is already a liquid, it has no melting point. It is already melted, compared to solid nitrogen.
Is liquid nitrogen a pure substance or a mixture?
Liquid nitrogen is a pure substance because it consists of only nitrogen molecules in liquid form.
