Redfred, and many others Kindly helped me earlier to the point of concluding that IF 1cc of nitrogen at 77K - so nitrogen as a cryogenic fluid - was enclosed in a 1cc container [given a tiny header space] of sufficient strength to resist the rising pressure, then, as the container was warmed to 300K, the nitrogen fluid within it would still be what was put in there (number of N2 mols) - but, of course, as a very energetic supercritical fluid.
This is a live problem premised the presumption that supercritical Nitrogen could stoppered in its container, which could be bled - on demand and slowly - into the atmosphere. I am aware of the Wolfram graph.
My questions are 5.
1. At what pressure would the Nitrogen be at 300K?
2. If vented to atm slowly to atm, would the pressure remain level as the nitrogen exhauster itself, until Nitrogen left in the container was now just gas at a pressure equal to the pressure at atm - when the flow to atm would stop.
3. If, as experiments show, a supercritical fluid looses its gas/liquid boundary, will it behave in any way other than as a gas on being vented to atm?
4. If liquid CO2 at c815 psi at 300K produces from each 1cc of liquid, c54cc of gas vapour at atm pressure, how much gas would 1cc of supercritical nitrogen produce at 300K?
5. By what formula does one specify wall thickness of such a vessel?
Any help gratefully received; also any contacts if anyone can think of someone who may be able to assist. It is a real problem with which I am dealing - Thank you.
Supercritical Fluids - Nitrogen
Re: Supercritical fluids - Nitrogen
