1. The problem statement, all variables and given/known data In the absence of the Pauli principle, the Coulomb force would not be saturated, and the energy of a system containing N atoms would vary as N^(5/3). Show that a system of 2N atoms would have an energy lower than that of two N - atom systems. 2. Relevant equations E = c * N^(5/3) 3. The attempt at a solution E(2N) = c * (2N)^(5/3) = c * 2^(5/3) * N^(5/3) 2 * E(N) = 2 * c N^(5/3) Since, 2^(5/3) > 2, then obviously E(2N) > 2 E(N), contrary to the what had to be shown. Where's the error in my reasoning?