Why do we add smoke? The cloud effect is more dramatic when there are tiny particles in the air like smoke or dust. Those particles give the water molecules someplace to clump together as they form. So adding smoke particles to the bottle makes it easier for a cloud to form and easier to see.
Clouds in the sky naturally from with dust and other particles in our atmosphere. Make another weather phenomena in a bottle — a tornado! Fill a plastic 1- or 2-liter bottle about two-thirds full with water. Place a metal washer on the top of the bottle and put another 1- or 2-liter plastic bottle upside down so its top is also on the washer. Connect the two bottles by wrapping their tops and the washer with duct tape, creating a seal. Quickly turn the bottles over and place them upright on a table.
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.
Genaille's Rods by Wingletang in Education. YungC6 Question 2 years ago. Answer Upvote. Filippo Taddei 4 years ago.
Reply Upvote. Is the smoke sitting inside there for ever or will it disappear at some point? Because vapors are in the gas phase, they will not settle unless chilled. Unfortunately, a vapor will dissipate over time, resulting in a consistent color inside the bubble and not the "smokey" appearance that I assume you want.
There might be a way to use two gasses that won't mix, but even if that worked they would likely cause health problems if the bubble cracked open. Any mixture of gases or smoke particles suspended in air becomes a uniform mix in minutes. So whatever sample you trap in a glass bubble will be featureless in probably less than a minute.
It will be indistinguishable from a uniform stain of the glass itself. As Wutaz writes, smoke particles will likely start sticking to the surface. At best that will result in the appearance of frosted glass, chances are the particles sticking to each other will look like deposited soot.
Iodine vapor has a strong color. Iodine compounds used as antiseptic are yellowish, but the vapor of pure Iodine is Magenta in color. But again, the mix of Iodine vapor and air will become a uniform mix in minutes, if not faster. Also, you can't contain the toxic Iodine vapor in the furnace. It's clearly too dangerous to try something like that in a shop for handcrafted glasswork.
Your bubble will quickly attain thermal equilibrium. To obtain structures such as smoke in thermal equilibrium, you need intermolecular forces. However, a characteristic property of gases is that thermal motion dominates intermolecular forces — and thus destroys the structures very quickly. Therefore, you cannot have long-lasting smoke-like structures in gases in your bubble — unless you ensure that it is not in thermal equilibrium, e.
In most respects, your glass bubble is an isolated system. Mixing different species of molecules. This is simply because there are much more mixed states than ordered states.
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.
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