Timeline for Why does matter exist in 3 states (liquids, solid, gas)?
Current License: CC BY-SA 3.0
23 events
| when toggle format | what | by | license | comment | |
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| Nov 23, 2019 at 5:13 | comment | added | leftaroundabout | @SolomonUcko there could be plenty more items in the list, but I'm not sure this would much advance the point of the answer. | |
| Nov 23, 2019 at 1:24 | comment | added | Solomon Ucko | Shouldn't there be "Bose-Einstein condensate" before "solid" and "plasma" after "gas"? | |
| Mar 23, 2017 at 22:38 | review | Suggested edits | |||
| Mar 23, 2017 at 22:48 | |||||
| Mar 11, 2016 at 10:26 | history | edited | leftaroundabout | CC BY-SA 3.0 |
Two small typos
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| Mar 11, 2016 at 0:42 | comment | added | aroth | Cat's Cradle is an interesting (though not at all scientifically accurate) book almost entirely about an alternative solid-state of water (called 'Ice-nine', but with properties that are drastically different than the real Ice IX). | |
| Mar 9, 2016 at 17:22 | history | edited | leftaroundabout | CC BY-SA 3.0 |
“it is seems evident”... one verb too many.
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| Mar 9, 2016 at 17:02 | history | edited | leftaroundabout | CC BY-SA 3.0 |
Sublimation not at all pressures
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| Mar 9, 2016 at 16:59 | comment | added | Emilio Pisanty | Hence the amended language - "not all materials have a liquid phase at all pressures" simply means that some materials may have some pressures at which there is no liquid phase. | |
| Mar 9, 2016 at 16:58 | comment | added | leftaroundabout | @Amy: Yeah, that sentence wasn't clear. Edited. | |
| Mar 9, 2016 at 16:55 | comment | added | leftaroundabout | @EmilioPisanty I meant liquid vs. gaseous phase there, of course. — You're right about sublimation depending on pressure; hence I did write “CO₂ sublimates ... (at atmospheric pressure)”. But do all materials have a liquid phase at some pressure? | |
| Mar 9, 2016 at 16:53 | history | edited | leftaroundabout | CC BY-SA 3.0 |
Clarify statement about size of chemical structure
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| Mar 9, 2016 at 16:52 | comment | added | user78541 | "Many materials have huge molecules, i.e. the chemical structure reaches in size the physical structure." What does the part after the "i.e." mean? I'm having difficulty parsing out the grammar. | |
| Mar 9, 2016 at 16:49 | history | edited | leftaroundabout | CC BY-SA 3.0 |
s/fluid[[non-gaseous]]/liquid/
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| Mar 9, 2016 at 16:42 | comment | added | Emilio Pisanty | Also "the gas phase won't really be distinguishable from the fluid one" is a weird phrasing, since gas is also a fluid. | |
| Mar 9, 2016 at 16:41 | comment | added | Emilio Pisanty | Good answer! But since precision with language is the name of the game, I'd take exception to "not all materials have a liquid phase" and add "at all pressures" to it. Carbon dioxide has a liquid phase at high pressure, and water ice sublimates without melting at low pressure. | |
| Mar 9, 2016 at 14:49 | history | edited | leftaroundabout | CC BY-SA 3.0 |
Added supercritical fluids to the discussion, as suggested by Martin Büttner
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| Mar 9, 2016 at 14:44 | comment | added | Fattie | beautiful answer. | |
| Mar 9, 2016 at 14:40 | comment | added | Martin Ender | One very interesting point (in the opposite direction of "there's more than three states of matter") is that at sufficiently high temperatures/pressures (i.e. beyond the critical point) liquids and gases become indistinguishable, so there isn't even necessarily a clear distinction between the two. Might be worth mentioning that in one of the answers, and yours seems nice and comprehensive, yet accessible. | |
| Mar 9, 2016 at 13:52 | history | edited | leftaroundabout | CC BY-SA 3.0 |
Added a bit about non-pure materials
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| Mar 9, 2016 at 13:28 | comment | added | Mindwin Remember Monica | Also, most plastics are composite materials, having several types of molecules. It is better to keep the analysis to pure substances. Composite materials can change temperature during the phase change, but pure substances "lock" their temperature (like boiling water). | |
| Mar 9, 2016 at 12:53 | history | edited | leftaroundabout | CC BY-SA 3.0 |
added 1111 characters in body
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| Mar 9, 2016 at 12:48 | comment | added | Luaan | Helium won't freeze at any temperature at standard pressure. Increase the pressure enough, and you get solid helium just fine :) | |
| Mar 9, 2016 at 12:41 | history | answered | leftaroundabout | CC BY-SA 3.0 |