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Material Science: Monovacancy Concentration

  1. Oct 29, 2013 #1
    1. The problem statement, all variables and given/known data
    The Monovacancy formation energy of a metal is 80 kJ/mol. Hence the monovacancy concentration (CV) at 25 degrees celsius is about:

    A)1.3x10^-13
    B)9.5x10^-15
    C).9
    D)5x10^15

    3. The attempt at a solution

    I know the answer is B but I dont know how to get to that. I have no book for this course (professor told us not to worry about getting it because everything we need will either be given in lecture or found on the internet).

    I dont have any notes on this and google is not returning anything helpful.

    I was wondering if someone would be willing to walk me through how to solve this problem.
     
  2. jcsd
  3. Oct 29, 2013 #2

    mfb

    User Avatar
    2016 Award

    Staff: Mentor

    What is the formation energy per vacancy? What is the average energy per degree of freedom? You just need the Boltzmann factor.
     
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