1. The problem statement, all variables and given/known data For a nitrogen molecule, calculate the lowest 2 energy levels and the characteristic temperature; Mass of molecule = 2.33x10-26[kg] Length of box = 10-9[m] 2. Relevant equations E = n2.h2/8mL2 (n=1,2,3,...) Characteristic Temperature (Tc) -> when thermal energy kBT = energy spacing of lowest 2 levels. 3. The attempt at a solution E1 = h2/(8).(2.33x10-44) = 2.358x10-24 [J] E2 = n2.(E1) = 4(E1) = 9.432x10-42 Tc = (E2 - E1)/kB = 7.074x10-24 / kb = 0.512 [Kelvin] The final answer quite simply does;t seem right to me, but I have checked numerous times my calculations. Can anyone clarify please.