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Question about compressibility factor

  1. Apr 30, 2015 #1
    At low temperatures, z falls below 1 and the reason for that is because the intermolecular interactions cause the pressure exerted to be lesser than expected. PVm/RT=z and since P is less than expected z drops below 1.

    However, as the pressure increases z increases to be above 1 because as P increases the Vm decreases to the point where the volume of the gas becomes more significant. However I don't see how this would cause z to increase above 1. Could someone explain that?
  2. jcsd
  3. May 5, 2015 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
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