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!

Debye Temperature

  1. May 14, 2009 #1
    1. The problem statement, all variables and given/known data
    Carbon 12 has a debye temperature of 2230 K, what is the debye temperature of carbon 13?

    No data on Debye frequency is provided.

    2. Relevant equations

    This is the problem, the only equations I can find relate the Debye Frequency to the Debye Temperature.

    [tex]\theta_{D} = \frac{\hbar\nu}{k_{B}}\left(\frac{6\pi^{2}N}{N}\right)^{\frac{1}{3}}[/tex]

    3. The attempt at a solution

    Basically, I can calculate the debye frquency for C-12 from the debye temp. However I don't know if the debye frequency is the same for C-12 as C-13. So gents, is it?

    Thanks,

    Dave
     
  2. jcsd
  3. May 15, 2009 #2
    Hmmm.... Well I'd say since the frequency is typically harmonic, you have...

    [tex]\omega = \sqrt{k/m}[/tex]

    So the Debye temperature you showed is proportional to m^(-1/2). And you can lookup the mass of carbon-13.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook