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Multiplicity of a classical gas

  1. Oct 21, 2013 #1
    1. The problem statement, all variables and given/known data
    Consider the multiplicity of a classical gas of N non-interacting molecules (not necessarily monatomic). Since they don't interact,their positions are not correlated, so the multiplicity of each will be simply proportional to the volume, with the result that the total multiplicity Ω = VNfN(U), where fN is some function of the total internal energy. Show that this implies the two conditions for an ideal gas.


    2. Relevant equations
    Ω(N,n) = N!/[n!(N-n)!]
    PV = NkT

    3. The attempt at a solution
    I'm not really certain how to go about this. Would the two conditions be referring to the ideal gas law PV = NkT = nRT and that a entropy and multiplicity increase?
     
  2. jcsd
  3. Oct 23, 2013 #2
    Can anyone tell me if I'm on the right track so far?
     
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