Liquid Nitrogen Phase Transition

[condestable777]

thanks, of course, physics is for fun too, because if you want to do this for money , well... XD

[doktorcivanim1]

where can I find a phase diagram for nitrogen?? (P&T)

Do you have? I need it very urgent :(

[hendotintco]

that looked awesome!  great vid.

[jidanyifeitian]

gorgeous!

thanks for sharing this.

[cippo1987ITA]

hmmm wait a moment, if N2 is the Co2 kind of gas, when i lower the pressure, the favourite phase should be the gasseouse one,....not the solid,...to have it solid, u shuould augmentate the pressure

[andrewkbradshaw]

Well actually by pumping the 'air' out of the chamber we are removing the more energetic N2 atoms (the ones with greater 'temperature') which leaves only the slower, colder atoms. You are right that lowering the pressure usually results in a less ordered state (like liquid->gas) but in this case the temperature- lowering effect beats the pressure-lowering effect and thus the liquid turns into a solid.

[cippo1987ITA]

Oh its ok, i didnt understood that u used low pressure as a way to reduce temperature.

Btw umust be under the fusion temperature,otherways i cant explain how is it possible to have solid N2 over fusion temperature without a pressure riduction

[tyga42]

@andrewkbradshaw because there's no gas for it to bond with it becomes a solid at that pressure, you should try pressured pump phase points and experiment to see which gases make it into a fluid at the same temperature/ pressure state, which would then be a paradox to your already proven hypothosis :D (maybe it's because normal room air already contains nitrogen as well as carbon dioxide and oxygen and it bonds with the nitrogen just it's not the same temperature)

[joekintzele98]

How did u do that

[CyborgMolotov01]

Funny how science can be fun !

[DarkestSidesoftheSun]

@CyborgMolotov01 No, its funny how science isnt fun to some people.