1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Variation of vapor pressure with temperature

  1. Mar 25, 2014 #1

    utkarshakash

    User Avatar
    Gold Member

    1. The problem statement, all variables and given/known data
    The following link shows the variation of vapor pressure with temperature. In which way the data should be plotted to obtain a straight line?

    http://www.chem.purdue.edu/gchelp/liquids/vpress.html


    3. The attempt at a solution

    For this, I need to know exactly the mathematical relationship which I can't seem to find anywhere. Anyways, my immediate guess would be that the graph is an exponential function. So plotting the graph of lnP vs T would give me a straight line but the correct answer is lnP vs 1/T. I'm sure I'm missing something here.
     
  2. jcsd
  3. Mar 25, 2014 #2
    Are you familiar with the Clausius Clapeyron equation?

    Chet
     
  4. Mar 25, 2014 #3
    This is the one component, two phase (solid-gas, liquid-gas) "version" of the Clausius-Clayperon equation.
     
  5. Mar 25, 2014 #4

    utkarshakash

    User Avatar
    Gold Member

    Thanks to both of you.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Variation of vapor pressure with temperature
  1. Vapor pressure (Replies: 3)

  2. Vapor Pressure (Replies: 0)

Loading...