When deriving Boltzmann's distribution in the textbook, it was stated that in the series development of equation (4.11) terms higher than the first order can be forgotten. Now open the calculation and interpret the quadratic term. 23 d2 1119 eff? ' Then justify why this and higher-order terms can really be left out of equation (4.11), when the heat reserve surrounding the considered system is very large. l11$2(Er)=ln!2() +---. (4.11) 1.3T