368 



The graphical diagrams relate to the variation of the so-called 

 "molecular" surface-energy (i with the temperature; in the same 

 diagram analogous, homologous compounds or such, related by simple 

 substitutions, are put together; this will be of practical use for the 

 comparative considerations later to be given, and allows a rapid 

 review of the behaviour. For the construction of the diagrams, not 

 the numbers of the tables, but those following directly from Cantor's 

 formula, are used ; therefore the correction, necessary to derive the 

 absolute value of (i from these readings by diminution, are indicated 

 on each curve in the diagrams. 



§ 4. Aliphatic Derivatives. 



This series of measurements relates to the following aliphatic 

 Molecular Surface 

 Energy in Erg. pro cm^. 



9ro 



94rö 

 9/0 



sso 



Ó30 

 S20 

 790 

 760 



730 



700 



670 



640 



6W 



JSO 



550 



520 



490 



UO 



430 



400 



370 



J40 



J/O 



2S0 



250 



\'^ 



•'^^ 





f 9 







^^ 







0,6 



rS. 



^; 







^^^ 



"•%:-' 



~8 "^ 



' I I I I I ■ * I I 1 ■ I » • _, 



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