Timeline for Why are there two states of matter in a bottle of gas?
Current License: CC BY-SA 4.0
22 events
| when toggle format | what | by | license | comment | |
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| Apr 14, 2021 at 6:43 | vote | accept | Winston | ||
| Jan 1, 2021 at 17:52 | answer | added | user283752 | timeline score: 1 | |
| Jan 1, 2021 at 17:23 | answer | added | supercat | timeline score: 1 | |
| Dec 4, 2020 at 21:57 | comment | added | Winston | @David White: you are correct, this is butane not natural gas. | |
| Dec 1, 2020 at 2:23 | comment | added | David White | It's unlikely that you have a bottle of natural gas that has liquid in it at ambient temperature, unless you live in a VERY cold climate (see critical temperature commentary from the Claudio Saspinski answer below). My guess is that you are using either propane or butane. | |
| Dec 1, 2020 at 0:20 | answer | added | Claudio Saspinski | timeline score: 2 | |
| Nov 30, 2020 at 23:13 | comment | added | Solomon Slow | Same thing goes for a grill gas tank. There should be no other substance in the tank except propane. If there's more than enough to pressurize the tank to the vapor pressure of propane at the ambient temperature, then there will be liquid at the bottom, and propane vapor above it. If you force more propane vapor into the tank, that will increase the tank pressure and temperature. But as the tank cools down, the vapor will condense to liquid until equillibrium is again reached at the characteristic pressure. | |
| Nov 30, 2020 at 23:02 | review | Close votes | |||
| Dec 15, 2020 at 3:07 | |||||
| Nov 30, 2020 at 23:01 | comment | added | Solomon Slow | @Exocytosis, Re, "[water] is not considered to be a gas at room temperature." Imagine an evacuuated chamber. Now let some water in. Let in enough so that when it settles down to an equilibrium there still will be some liquid water at the bottom of the chamber, but don't let in enough to fill it completely with liquid. Now, what's in the space above the liquid? The answer is gaseous water, at room temperature. And the pressure of the gas (a.k.a., "vapor") within the chamber will be the characteristic vapor pressure of water at room temperature. | |
| Nov 30, 2020 at 22:49 | comment | added | Solomon Slow | IMO, there are too many questions in this "question." Probably the central question is, "why and when can liquid exist?" | |
| Nov 30, 2020 at 22:48 | comment | added | The Photon | @Exocytosis, but it is a liquid, and you seem to be expecting these other liquids to behave very differently than liquid water. They don't. As liquids, they behave like liquids. As gasses they behave like gasses. The liquid portion doesn't expand because the volume of a liquid is constant(ish). | |
| Nov 30, 2020 at 22:37 | comment | added | Solomon Slow | FWIW, when liquid phase and gas phase of the same substance both are present in the same container, then the gas phase often is called "vapor." | |
| Nov 30, 2020 at 22:10 | comment | added | Winston | @The Photon: no but it is not considered a gas at room temperature. | |
| Nov 30, 2020 at 21:14 | comment | added | The Photon | When you pour water into a glass, does it expand to fill the glass? | |
| Nov 30, 2020 at 20:03 | history | edited | Qmechanic♦ |
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| Nov 30, 2020 at 19:37 | comment | added | Winston | I imagine there is a tendency of molecules to move apart, due to temperature or whatever. So if the liquid is the densest form of natural gas in the bottle, I thought that would mean the liquid is the most prone to expansion because it has the highest internal stress. | |
| Nov 30, 2020 at 19:33 | comment | added | Ankit | what do you mean by liquid pressure after all ? How are you interpreting it ? | |
| Nov 30, 2020 at 19:32 | comment | added | Winston | Are you saying the liquid phase is less pressurized than the gases above? | |
| Nov 30, 2020 at 19:28 | comment | added | Ankit | the compressed gases exert large force on the molecules below them.. Even a little compression of gas can increase the pressure a lot | |
| Nov 30, 2020 at 19:27 | comment | added | Winston | How? I would suppose they exert a lower pressure than the densest liquid on each other. | |
| Nov 30, 2020 at 19:25 | comment | added | Ankit | actually the gases play a role in preventing the remaining liquid from being a gas .. | |
| Nov 30, 2020 at 19:09 | history | asked | Winston | CC BY-SA 4.0 |