1. The problem statement, all variables and given/known data Calculate the average electron energy of an electron in an electron gas at thermal equilibrium. Temperature is 315K. Calculate the average electron momentum. Calculate the de Broglie wave length of the electron 2. Relevant equations 3*kT/2 3. The attempt at a solution Part 1) 3*(8.62*10^-5)*315K/2 = .0402 eV Part 2) I'm unsure of how to calculate average momentum. Should I use the mass of the electron?