dpb wrote:
Leon wrote:
...

... Vapor literally does not exist with out air, vapor is simply
difused matter suspended in air.

Not necessarily--there are other gaseous materials other than O, N,
etc., that are the constituents of air.

Or, more visible way to think of it, if were to start w/ a liquid in a
closed container w/ a movable wall and if retract that wall creating a
vacuum there will become a new equilibrium of two phases--liquid and
gas. The concentration will be dependent on the specific liquid.
There's no air needed...

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