this post was submitted on 14 Jan 2024
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What a difference it can make (lemmy.world)
submitted 8 months ago by [email protected] to c/[email protected]
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[–] [email protected] 3 points 8 months ago (3 children)

Is it something other than ice?

[–] [email protected] 4 points 8 months ago (1 children)

Tripe Point of Water

So, ice, water and vapor

[–] [email protected] 5 points 8 months ago (1 children)

Sort of. The triple point doesn't really exist at standard atmospheric pressure. The true triple point is somewhere around 600Pa pressure -- or a out 0.6% of atmospheric pressure. You can achieve this in the upper atmosphere, on Mars, or in a vacuum chamber where you pull the pressure down to that point.

There is such a thing as vapour pressure in our atmosphere which is different than the triple point. You see this as humidity. But this isn't truly gaseous water -- rather it is more akin to liquid water molecules held in a gaseous solution (the atmosphere being the solvent).

[–] [email protected] 2 points 8 months ago

I don’t believe I implied otherwise.

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