889 



in question can then be represented in the form 



i?V) 



pv = RT[l + 



In fig. 4 /;;; — RT is represented as a function of — for mixture VI. 



V 



We have computed the values of B in this equation and have 

 obtained the followina; results 



Unfortunately so far determinations of 5-values for argon at 

 these low temperatures have not been published'). For nitrogen 

 measurements by Bkstelmeyer and Valen finer ') are available. 



These measurements give B^ — 0.01J6 at T=:81.4 in good 

 agreement with our results as regards the order of magnitude. 



The equation of state finally enables us to calculate the volume 

 of the saturated vapour. This calculation we are, however, oltliged 

 to defer. Table 8 gives the volumes of the saturated vapour for the 

 points which were experimentally determined. 



1) Gomp. H. Kamerlingh Onnes and W. H. Këesom Ene. d. Math Wiss. 

 Gomm. Leiden Suppl. 23. 



3) We understand that the measurements of B for argon undertaken by Kamerlingh 

 Onnes and Grommelin in the Leiden Laboratory will not be coinpleled for a 

 considerable time. 



s) A. Bestelmeyer and S. Valentiner. Ann. d. Phys. (15) 61, 1904. 



