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Homework Help: Find the average velocity of the molecules of neon before an

  1. May 23, 2015 #1
    1. The problem statement, all variables and given/known data
    A container has neon gas in the temperature 273 K. We heat the container to the temperature 373 k, keeping the volume constant. Find the average velocity of the molecules of neon before and after the heat.

    2. Relevant equations

    3. The attempt at a solution
    I thought to us the formula U=3/2vRT but I don't have delta U.
  2. jcsd
  3. May 23, 2015 #2
    ΔU = ΔQ + ΔW, since no work was done by/to the system then ΔW = 0, and you're left with ΔU = ΔQ !
    Hope this help :) !!
  4. May 23, 2015 #3
    How can I find the ΔQ?
  5. May 23, 2015 #4
    Energy (U) is proportional to temperature (T). How do you relative speed (v) and temperature (T)? Hint: What form of energy do the molecules possess?
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