365 



of absorption a and the logarithm of this last quantity. It is 

 used according to the formula 



«to 



Example: Given the tension of a water at 20° 

 Sought its tension at 5° : 



9,0 = 3.4 

 C.o = 0.82 



3.4. 



920 — C^o = 3.08 log. (вго— C20) = 0.4885 



log. «20 = 9.8G33 



0.3518 

 log. a. = 0.0682 



(Ö.0-C20)-" = 1.02 

 «5 



6- = 0.02 



0.283« 



6». = 1.95 



It would of course be possible to treat the influence of 

 the temperature upon the tension theoretically and to determine 

 the equation of the reaction-isochore, but I do not think the 

 experimental data, so far obtained, sufticiently numerous or, 

 indeed, sufficiently accurate for such treatment, and I therefore 



