This is the maximisation of disorder with which entropy is often explained in popular science. If you increase the temperature of the system, mixing will become more dominant this is due to the thermal energy overcoming the ordering forces. In particular, in a gas, thermal mixing dominates intermolecular forces. This is what distinguishes a gas from a liquid: If intermolecular forces dominated, condensation would happen and we would have a liquid or solid.
Thus the only way to obtain an ordered state in thermal equilibrium in a gas is by external force fields. I cannot find any sources on this, but IIRC, gravity is not strong enough to stratify any pair of gases at room temperature on the scales we are talking about.
Now, anything resembling smoke is obviously not mixed and predominantly a gas. It is also not structured by an external force field which would cause layers or similar. Therefore it cannot be the thermal equilibrium. From another point of view, all processes causing smoke are clearly far from thermodynamic equilibrium. For example, the process of burning a candle is based on restoring a chemical equilibrium which supplies the energy and comes with considerable inhomogeneities in temperature.
Cycling between cooling and heating. For example, you could have a liquid or solid in your bubble that evaporates when heated, which would cause smoke to form. Heating a part of the bubble and cooling another part. For example, you could heat the bottom of your bubble and have the rest cool down by the surrounding room.
However, unless you carefully tune this, you will likely only see a foggy bubble. Think of supplying just the right amount of heat to a closed pot of water. Shaking the bubble. However, this can only cause layered structures to homogenise and does not form structures. However, the temperatures required for breaking those bindings will also melt your glass otherwise they would been broken in production , so we can disregard them.
Also, these are usually strongly exothermic one-way processes. If not, you can fill the glass bubble with a clear, viscous fluid like corn syrup or glycerin, and then with a straw, blow some food coloring into the middle of the fluid. Then seal the glass bubble. Heat it slightly so the food coloring diffuses slightly into the shape of smoke.
Then let it cool and put in a place where it won't get disturbed. It should last awhile, depending on how viscous the fluid is. How about aerogel? It has been nicknamed "frozen smoke" and has been made at home. Sign up to join this community.
The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Is it possible to trap smoke or a smoke like gas inside a glass bubble? Ask Question. Asked 8 years, 1 month ago. Active 1 month ago.
Viewed 9k times. Is this possible? Improve this question. Isak Lystad Isak Lystad 1 1 silver badge 3 3 bronze badges. Add a comment. Active Oldest Votes. Improve this answer. Wutaz Wutaz 2 2 silver badges 8 8 bronze badges.
It would require almost constant heating and cooling of the bubble, but if Isak is okay with that, I guess you would only need a suitable vapor. In principle it might work for this effect, but the engineering of it will be difficult, and thermodynamics requires that you power the system.
It will be indistinguishable from a uniform stain of the glass itself As Wutaz writes, smoke particles will likely start sticking to the surface. Cleonis Cleonis 13k 1 1 gold badge 17 17 silver badges 43 43 bronze badges. By 7macs Follow. More by the author:. For this Instructable you will need a Q card a lighter a jar with a lid. First fold the card in half so you have a crease, then unfold.
Now fold both sides into the center. Fold that in half and then this step is done! Take the lighter and light the end of the folded Q card on fire. Now lightly blow the fire out so it smokes.
The smoke will last for about 10 to 15 mins. Smoke wants to rise so if you block its exit it has nowhere to go. Its as simple as that. Hope you enjoyed! Participated in the Fire Challenge View Contest. Did you make this project? Share it with us! I Made It! Chameleon Mask by hugheswho in Halloween.
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