﻿Molecular Thermodynamics, 621 



from which, as already remarked, (21; might have beer* 

 directly obtained, and which can be written 



rfloo- 



dloo" 



1-X, 



(51) 



(and so on). 



Again, we pass over the most general case, where it is 

 necessary to consider G Xg '', etc., as depending in specific 

 ways upon the particular solutes present, and we suppose 

 (except for negligible residues) G Xs ", etc., can be accounted 

 for as functions of C. If these functions can be written 

 approximately as short series of integral powers, then the 

 above equations will take the general forms, 



dlog 



dlog 



etc. 



1-X, 



1-X, 



= |>o+0iC+^C» + <fcC« ]dG 



J 



(52) 



whence x 8l , x s .., (and so « s ), can all be obtained in the 



form of ascending series of integral powers of C, by a 

 procedure entirely analogous to that used in the simpler 

 case of one solvate, viz., by assuming such forms for # Sl , 



x s 9 , and then determining the coefficients in terms of 



<7o> 9\-> 9ii 5 k) T substituting in the above equations used 



of course simultaneously. 



The interesting simple case where there are two solvates 

 and Gc x ", Gr x " can be neglected, has been investigated and 

 it has been found, as might be anticipated, that in the 

 expression for « s , 



« S =<+AC + 7 S C 2 4-S S C 3 , . . . (53) 



finally obtained, the coefficients are quite of the same order 

 of magnitude, as regards maximal values, as in the case of 

 one solvate. They are conveniently obtained in terms of a 



