116 PROPERTIES OF ELECTRICALLY CONDUCTING SYSTEMS 



The simplest correction would be that in which the conductances were 

 assumed to change in direct proportion to the fluidity change of the 

 solution. 



This method of correction has been applied to solutions of potassium 

 iodide dissolved in water at O . 11 In Figure 17, lower curve, are plotted 

 values of log'(CA) and of log[C(A A)], both for the measured (rep- 



0.5 



Log (cA) for LiCl. 



I.O 



1-5 



s 



I " 

 3 



iS 0.0 



5 



T.o 



2.0 



3.0 



X* 



o 



I 



4 



$ 



T.o 



Log (cA) for KI. 



3.0 



FIG. 17. Showing Influence of Viscosity Correction on the Conductance Curves of 

 KI and LiCl in Water at 0. 



resented by crosses) and the corrected (represented by circles) con- 

 ductance values of potassium iodide dissolved in water at 0. If Equa- 

 tion 9a holds and if the assumed viscosity correction is applicable, then 

 the corrected points should lie upon a straight line. 12 This, apparently, 

 is the case. 



The conductance curve of potassium iodide in water at is a very 

 exceptional one in that at higher concentrations it passes through a slight 

 minimum and maximum, after which the conductance decreases very 

 rapidly with increasing concentration. This form of the curve is due 



11 Kraus, J. Am. Chem. Soc. 36, 35 (1914). 



12 Equation 9a may be written : n log (CA) = log [C7(Ao 



A) ] + log ZM< 



