上游充通大粤 SHANGHAI JIAO TONG UNIVERSITY 10.4 Third Law Q==1 NA!NB! N1N2N1-1N2-1N1-2N2-2 S=kIn=0 The result of Boltzmann Hypothesis also agrees with the Third Law of Regular crystal structure classic thermodynamics Figure 10.3 Arrangement of atoms in a per- fect compound. Perfect compound AB at 0 K,S =0 Idea solution of AB at OK,S=Smix In general,0<S<Smix10.4 Third Law N1 N1 -1 N1 N -2 2 N2 -1 N2 -2 The result of Boltzmann Hypothesis also agrees with the Third Law of classic thermodynamics Perfect compound AB at 0 K,S = 0 Idea solution of AB at 0K, S = Smix In general, 0<S<Smix