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Homework Help: Molar Entropy Of A Gas

  1. Apr 21, 2010 #1
    1. The problem statement, all variables and given/known data
    Show that the molar entropy of a gas is given by;


    2. Relevant equations



    3. The attempt at a solution

    I've tried this numerous times. The first part of the question involved getting ln Z for the hemholtz free energy which was found to be;


    The 3/2 is a power. I have tried this numerous times and still unable to get the result mentioned.
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Apr 21, 2010 #2


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    Gold Member

    Can you show your steps? It's just a matter of differentiating F and playing with a few terms. Also, [itex]S=-(\partial F/\partial T)_V[/itex].
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