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Entropy in system of non-degenerate atoms

  1. Aug 9, 2016 #1
    Hi all,

    1. The problem statement, all variables and given/known data

    A system of non-degenerate multi-level atoms are all in their lowest energy state. Calculate the entropy of the system.

    2. Relevant equations

    S = kbTln(Ω)

    S = Q / T

    dU = TdS - pdV

    3. The attempt at a solution

    I'm not sure how to proceed. I know that Ω is the degeneracy function. If all of the atoms in the system are non-degenerate and in their lowest energy level, does this value equal 1 ? If the atoms are in their lowest energy state, what does this say about the temperature?

    Many thanks for your help.
  2. jcsd
  3. Aug 9, 2016 #2
    Indeed Ω = 1. This is enough to calculate the entropy. Temperature is often identified by ##1/T = \Delta S/ \Delta E##, so I suppose we could attempt to calculate it this way but it might be more work.
    Last edited: Aug 9, 2016
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