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?