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How much pressure does water have to be in for it to phase change

  1. Dec 21, 2008 #1
    I was wondering if it was possible to put water in a tube, and either add air pressure or put it in a vacume and changee it's phase change? I herd at wikipediea that you can change the state of matter somthing is in by either changing the tempature or pressure that it's in.
  2. jcsd
  3. Dec 21, 2008 #2


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    Well, if you take room temperature water and put it in a vacuum, it'll boil, yes. It won't solidify without extrordinarily high pressure, though. Check the phase diagram: http://www.lsbu.ac.uk/water/images/phase.gif [Broken]
    Last edited by a moderator: May 3, 2017
  4. Dec 21, 2008 #3


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    You need to study a http://www.lsbu.ac.uk/water/phase.html" [Broken] for water. This shows you pressure temperature combinations and the resulting phase.

    Russ types faster then I do! beat by 1 minute. :biggrin:
    Last edited by a moderator: May 3, 2017
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