Presentation on superfluids and infinite order phase changes

[derekmohammed]

presentation on superfluids and "infinite" order phase changes

Hi,
I am going to give a presentation on superfluids and "infinite" order phase changes, I have all of the theory and what I am going to present down pact but I wanted to do something visual, like a demo. I am aware that you need very low temperatures to make things like this work. But are there any alternatives that maybe closely model or slightly demonstrate the superfluid nature?

Some chem student was telling me somethign about Dry ice and very low impact of hot water onto the surface of the Dry Ice so that the gas has a "lower" energy and slightly acts like a superfluid does...
Any comments would be VERY helpful.
Thanks
Derek Mohammed

 

[Mk]

Sorry, I got nothing.

 

[sir-pinski]

Hello Derek,

Thank you for your presentation on superfluids and "infinite" order phase changes. It sounds like you have a solid understanding of the theory behind these concepts. As for your question about alternatives to demonstrate superfluidity, there are a few options you could explore.

One option is using liquid helium, which has a boiling point of -452.1°F and can exhibit superfluid properties at very low temperatures. However, this may not be easily accessible or safe for a demonstration. Another option could be using liquid nitrogen, which has a boiling point of -320.4°F and can also exhibit superfluid properties at lower temperatures. This may be a more feasible option for a demonstration.

As for the suggestion of using dry ice and hot water, this may not be an accurate representation of superfluidity as it is a different phenomenon called the Leidenfrost effect. This occurs when a liquid comes into contact with a surface much hotter than its boiling point, creating a vapor layer that insulates the liquid and allows it to move freely. While this may have some similarities to superfluidity, it is not the same thing.

I would suggest researching some videos or demonstrations of superfluidity using liquid helium or nitrogen to see if there are any that can be safely and accurately recreated in a classroom setting. I hope this helps and good luck with your presentation!