Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Meaning of U

  1. Oct 8, 2006 #1
    Meaning of "U"

    If we have a One dimensional gas, so using [tex] \beta = \frac{1}{KT} [/tex]

    then we can define (if we knew partition function) the quantity U so:

    [tex] U= - \frac{\partial LnZ}{\partial \beta} [/tex]

    which is called "inner energy" if we call the potential of the particles V(x) my question is if somehow U (inner energy) is the derivative of a potential or something similar
  2. jcsd
  3. Oct 15, 2006 #2
    U is the internal energy of the system. Why would it be the derivative of a potential (which, by the way, is usually a force or force field)?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Meaning of U
  1. Proof of F = -grad(U)? (Replies: 5)

  2. U value of glass (Replies: 3)

  3. Understanding H=U+PV (Replies: 17)