601 



Contribution to *S\ after integration between o and 2o: 

 c 



12 



162ö« 



Adding the fonr contributions we tind : 



(19) 



Frono (14) we see tiiat (ascribing to the index 1 the same signi- 

 ficance as above) : 



= T\n^(^n<fr. \ •••••• (20) 



This result agrees with that first found by Jagek I.e. intro- 

 ducing namelj the quantity 6„- from the equation of slate of van 

 DER Waals : 



2 • T •'" ' 



we find for (20): C\ = - b^\ the agreement of which result 



8 



with that of Jager is e.g. evident by comparison with Die Zustands- 

 gleichung 1. c. ^ 40«. 



