Question in the evaporation of water
Question in the evaporation of water
(OP)
Suppose that I have a 1 m3 of air humidity ratio 20%, and put this amount of air with a small amount of water at a temperature of 30, of course, part of the water will evaporate, my question is: Is the size of the air will increase? Or is the air pressure will increase? Although it will increase the rate of increase
Thank you
Thank you





RE: Question in the evaporation of water
You could find a density for each phase, but also an average density for the box not taking the two phases into account.
Now if all the water evaporates (assuming that the temperature is kept consatnt) will the average density change then? No, also the no. of moles in the entive volume is constant, and therefore the pressure will nto change considering PV=zVnRT
I think the change in Z is so small that it will not matter.
Best regard
Morten
RE: Question in the evaporation of water
RE: Question in the evaporation of water
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RE: Question in the evaporation of water
@MortenA: I think so, the pressure doesn't increase
@LostHippie & : I means .30 degrees Celsius
@IRstuff: Suppose that the air box in 30 degrees Celsius also
Thanks a lot
RE: Question in the evaporation of water
RE: Question in the evaporation of water
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Chinese prisoner wins Nobel Peace Prize
RE: Question in the evaporation of water
From there the mixture will obey Dalton's Law of Partial Pressures.