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Flow of gases through a capillary

  1. Oct 13, 2015 #1
    You have a capillary with a stream of water vapor flowing through. Inside the capillary argon gas is also flowing (in the same direction) with a flow rate of 3 L/min. How high of a flow rate can the water vapor have before it starts condensing on the walls? Flow is laminar and the system is at atmospheric pressure.
     
  2. jcsd
  3. Oct 14, 2015 #2

    andrevdh

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    You need to check a phase diagram for water. It shows the transitions between the various phases at the various pressures and temperatures. I do not think the presence of argon would change this since it is a noble gas. For instance : http://www1.lsbu.ac.uk/water/water_phase_diagram.html
     
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