160 PROPERTIES OF ELECTRICALLY CONDUCTING SYSTEMS 



intermediate concentrations, however, where the change in ionization is 

 large, the conductance-concentration curves at different temperatures 

 intersect one another in a more or less complicated manner, indicating 

 that the conductance-temperature curves in this region exhibit maxima. 



100 



100 



C *.003| 



C|.0 



50 



C..3J 



-50 



-JO - 



Temperature. 



+ 10 



FIG. 34. Conductance-temperature Curves, illustrating the Relation between Con- 

 ductance and Temperature for Solutions of Electrolytes at Different Concentra- 

 tions in Solvents of Relatively Low Dielectric Constant. 



The temperature- conductance curves are shown in Figure 34 for concen- 

 trations from 1.0 to 0.001 normal. At 0.001 normal the conductance 

 increases throughout with increasing temperature. As the temperature 

 rises, however, the conductance change due to a given temperature change 

 becomes smaller and smaller and at this concentration the curve is very 

 near a maximum at a temperature .of + 10. At a concentration of 

 0.0031 normal, the conductance curve exhibits a very flat maximum at a 



