I've been wondering about the porosity of materials, I know that, for example the air comes out of tires/balloons because (besides having huge gaps on the rim contact area/knot) they are made of a porous material, but it has nothing to do with molecules, because the porosity appears in a much larger scale.
Now, let's say we have a flask made of a solid material, and let's say it's "perfect", I mean, the molecules are perfectly aligned, and it has a normal thickness like 1mm or so, if we fill this flask with a gas and put it in a vacuum chamber*, will the gas come out over time? I don't know if all elements have "alignable" molecules, but you have the idea.
*-let's say it's an inert chamber, no gravity, radiation and stuff.
I have a few possibilities I could think of:
- It depends on the size of the gas molecule and the gaps between the molecules on the solid material. If it fits in, then yes.
- It isn't possible because the forces keeping the molecules on the solid material together would also keep the gas molecules from transpassing it.
- If the above is correct, after some time the flask itself would disintegrate (?) depending on how strong is the force keeping the molecules together. I know that in normal conditions, objects are always "losing" molecules, but will it happen in this hypothetical chamber also?