3 ms·
I'm not exactly sure how they choose which particular gas to use, but I'm sure the lighter gasses will leak more easily. Conceptually, it's like a thermos bott
by bradknowles 4y ago
I'm not exactly sure how they choose which particular gas to use, but I'm sure the lighter gasses will leak more easily.
Conceptually, it's like a thermos bottle, and you'd think that you would want a vacuum, but apparently that's hard to keep intact on windows, so a noble gas between the layers works better.
- bloak 4y agoYes, but not any old noble gas. Helium and neon, for example, have higher thermal conductivities than nitrogen. So it seems like argon is better for the job as well as being cheaper. (While every noble gas has roughly the same heat capacity by mole/volume. Perhaps some CFCs would have been even better for insulation, but bad for the ozone layer, of course, and rightly banned?)