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Homework Help: Lennard-Jones potential minimized

  1. Feb 17, 2015 #1
    1. The problem statement, all variables and given/known data
    At what distance r is the Lennard Jones potential minimized?

    2. Relevant equations
    Typical graph of Lennard Jones potential, U(r) vs. r/σ

    3. The attempt at a solution
    I thought that from looking at the graph, r = ∞ for potential minimization. However, the answer turned out to be (2)1/6σ. Could someone explain?
  2. jcsd
  3. Feb 17, 2015 #2


    User Avatar
    2017 Award

    Staff: Mentor

    Why? Zero is not the minimum.

    You should have the function definition given somewhere. Finding the minimum is simple mathematics.
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