Rhymes with Siberia + Arctic Circle ;^> er, Fixed

Sublimation
..It's not just about Shrink-talk about homo-sap weirdness :^>

If solid methane at 1 atm is heated while the pressure is held constant, will it melt or sublime?
"Starting at P = 1 atm and moving horizontally, liquid region is reached at T 180C Then into the gaseous region, at T  160 C.
So, solid methane melts
In order for methane to sublime, the pressure must be below the triple point pressure"

Looks like CH-4 passes as, nothing (over Eons in the mere Arctic) is likely to have hit -200º C--with damn near perfect insulation
unto (our possibly last-) millennium. And necessity of 1/10 atmospheric pressure, to boot.
Gotta love Chemistry; it's all about Physics.

But 'Muricans are all about Sports; 'Climate' is way down such lists, I've noted.

Post #436,301 by Ashton 9/18/20 11:38:13 PM 9/18/20 11:38:13 PM Reply	Rhymes with Siberia + Arctic Circle ;^> er, Fixed
Post #436,302 by Andrew Grygus 9/18/20 11:56:11 PM 9/18/20 11:56:11 PM Reply	Look on the bright side . . . . . all that methane is burning into less serious carbon dioxide and water vapor. This is less damaging than if it all leaked out as methane as the permafrost melted, as it is destined to do.
Post #436,712 by Ashton 10/18/20 8:51:53 PM 10/18/20 8:51:53 PM Reply	Good Point.. though there might have been a Gotcha! with CH-4 Sublimation ..It's not just about Shrink-talk about homo-sap weirdness :^> If solid methane at 1 atm is heated while the pressure is held constant, will it melt or sublime? "Starting at P = 1 atm and moving horizontally, liquid region is reached at T 180C Then into the gaseous region, at T  160 C. So, solid methane melts In order for methane to sublime, the pressure must be below the triple point pressure" Looks like CH-4 passes as, nothing (over Eons in the mere Arctic) is likely to have hit -200º C--with damn near perfect insulation unto (our possibly last-) millennium. And necessity of 1/10 atmospheric pressure, to boot. Gotta love Chemistry; it's all about Physics. But 'Muricans are all about Sports; 'Climate' is way down such lists, I've noted.

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