350 PROPERTIES OF ELECTRICALLY CONDUCTING SYSTEMS 



in a large measure, lost its individuality. This is not true of solutions 

 in other solvents. Here the electrolyte retains its individual character- 

 istics even at very low concentrations. It is interesting to note that, at 

 higher temperatures, certain of the individual properties of electrolytes 

 in aqueous solution disappear while others make their appearance. Thus, 

 the ionic conductances approach one another at higher temperatures, 

 while the ionizatibn values diverge the more the higher the temperature. 

 It is not to be doubted that the properties of aqueous solutions at higher 

 temperatures closely resemble those of non-aqueous solutions under 

 ordinary conditions. 



It is not unlikely that, in the end, many of the theories, which have 

 been suggested from time to time and found inapplicable, contain certain 

 elements of truth. The error has been introduced in attempting to apply, 

 generally, theories which are applicable only to special cases. It appears 

 probable that, ultimately, it will be necessary to take into account, under 

 various conditions, a change in the speed of the ions with concentration as 

 well as a change in the degree of ionization. At the same time there will 

 doubtless be found many cases in which intermediate ions are formed and 

 in which the electrolyte polymerizes. Yet there is found, in all electro- 

 lytic solutions, a certain unity among the phenomena, which indicates 

 the existence of a comparatively small number of chief governing factors. 



