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Finding the energy of a system using the partition function

  1. Aug 7, 2010 #1
    1. The problem statement, all variables and given/known data

    In part a) to this question I calculated the partition function which is Z = 1 + 3/e + 5/e^2



    2. Relevant equations

    I can't find an equation relating U to Z.


    3. The attempt at a solution

    If someone has an explanation or a link to an equation that would be great. Thanks.
     
  2. jcsd
  3. Aug 7, 2010 #2
    What's your situation, what type of particles are you considering?
     
  4. Aug 7, 2010 #3
    it does not specify but we deal mostly with ideal gases.
     
  5. Aug 7, 2010 #4

    vela

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    Wikipedia has a brief summary.

    http://en.wikipedia.org/wiki/Partition_function_(statistical_mechanics [Broken])
     
    Last edited by a moderator: May 4, 2017
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