ScienceGeek

Ah thank you so much!

The combined gas law relates temperature, volume, and pressure. But by placing a balloon in a dewar of liquid nitrogen, that's only cooling it. By heating a ballon, that's heating it. Those affect temperature but not pressure. So I think we need to incorporate pressure, but I see no way of doing that in a classroom. Is there any apparatus I may have never heard about that can do such thing? &thank you for your help !!

Hi, for my high school project we have to present a demo showing the combined gas law. I've looked all over the internet and have tried to come up with some ideas, but I cannot think of anything. We need something that will show the basic theory, without having to provide any measurements or anything. Thank you for your time ;D