3 ms·
by what measure? 100lb of helium is exactly the same by weight as a 100lb of propane. By volume, in a cylinder, it is approximately the same (I believe). By
by spott 12y ago
by what measure? 100lb of helium is exactly the same by weight as a 100lb of propane. By volume, in a cylinder, it is approximately the same (I believe).
By number of atoms, it is much more (a factor of 10 or so).
- bsder 12y agoWeight is the same, but because the number of atoms is so much higher isn't the pressure a lot higher? PV=nRT and all that? I presume the leakage loss in storage also raises the price of Helium. People buy propane just-in-case knowing they can store it forever while helium is a "buy it before you use it" kind of thing.