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Homework Help: Separation of two Isotopes

  1. Feb 15, 2012 #1
    1. The problem statement, all variables and given/known data
    Want to separate two isotopes whose atomic masses differ by one neutron mass. We do this by filling a tube of height H with a gaseous mixture of the two isotopes

    Derive a formula of the enrichment factor
    [n1 (H)/ n2 (H)]/ [n1(0)/n2(0)]

    If the gas from the top of the tube is fed into a second tube, and the processes is repeated N times, how many 10 m long tubes will be needed to make the final concentration .1 from the initial concentration of .001 at room temperature?

    2. Relevant equations
    μ= τ ln [nj/nq]
    where nq= [mjτ/2∏hbar]^3/2

    3. The attempt at a solution
    Not sure where to even begin with this problem! Any help would be appreciated!!
  2. jcsd
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