1. Limited time only! Sign up for a free 30min personal 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!

Homework Help: Thermal expansion coefficient of a Debye solid

  1. Nov 15, 2012 #1
    1. The problem statement, all variables and given/known data

    A solid's thermal expansion coefficient is defined as

    δ= [itex]\left(\frac{1}{V}\frac{∂V}{∂T}\right)[/itex]

    In the Debye model and at the low-temperature limit, show that δ is a positive quantity and is proportional to [itex]T^{3}[/itex]. At the high-temperature limit, show that δ is still positive but does not depend on temperature anymore.

    2. Relevant equations

    δ= [itex]\left(\frac{1}{V}\frac{∂V}{∂T}\right)[/itex]

    3. The attempt at a solution

    I don't even know how to express volume as a function of temperature!
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted