1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Helium Absorption

  1. Mar 13, 2012 #1
    1. The problem statement, all variables and given/known data

    The atomic site that is in thermal and diffusive equilibrium with a gas of Helium atoms that is on the surface of a metal can either absorb an atom of Helium or it can be vacant.
    (a) What is the Grand Partition function of the system?
    (b) Derive the average thermal occupancy <N> of a site

    2. Relevant equations



    3. The attempt at a solution
    I have no idea where to even begin!
     
  2. jcsd
  3. Mar 14, 2012 #2
    The partition function is given by z = Ʃ e^ -β (Ni) (εi-μ)
    how do you account for the fact that the surface is either vacant or not
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Helium Absorption
  1. Hydrogen to Helium (Replies: 14)

  2. Helium Balloon (Replies: 1)

  3. Helium Balloon (Replies: 10)

  4. Vrms of Helium (Replies: 2)

  5. Helium balloons (Replies: 0)

Loading...