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Virial equation second coefficient derivation

  1. Feb 18, 2016 #1
    I've been stuck over this integral for around an hour while studying the derivation of the second coefficient of the virial equation:
    ∫∫dx1d x2 γ(x1,x2) where γ(x1,x2) is 1 when x1 - x2 < constant.
    = V∫ dx2 γ(x1,x2) where V is the integral of dx1.
    Given: periodic boundary condition: x1 + V = x1
    How do you justify this step?
     
  2. jcsd
  3. Feb 23, 2016 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
     
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