THE 

 LONDON, EDINBURGH, and DUBLIN 



PHILOSOPHICAL MAGAZINE 



AND 



JOURNAL OF SCIENCE. 



[a 



SIXTH SERIES.] 





* April 1920. 



XXXVIII. The Determination of the Rate of Solution of 

 Atmospheric JSitrogen and Oxygen hy Water. — Part II. 

 By W. E. Adeney, J).Sc, A.R.C.Sc.L, F.I.C., Acting 

 Professor of Chemistry in the Royal College of Science 

 for Ireland; and H. Gr. Becker, A.R.C.Sc.L, Research 

 'Student *. 



I. Introduction. 



IN the first part of this communication f a method of 

 studying the rate of solution of air by water was 

 described, and some results were given, which showed that, 

 when the water was kept thoroughly mixed and the water- 

 air surface unbroken, the phenomenon took place in accord- 

 ance with the general equation 



dw 7 



-7- = a — ow, 

 at 



in which a represents the initial rate of solution, and biv the 

 rate of escape of the gas from the water, b being a constant 

 depending on the conditions of the experiment. 



The method of experimenting consisted in enclosing a 

 laroe bubble of air, of known volume, in a narrow tube 

 containing de-aerated water, and allowing the bubble to pass 



* Communicated by the Authors. From the Scientific Proceedings of 

 the Koyal Dublin Society, vol. xv. (n. s.) No. 44, Sept. 1919. 



t Scientific Proa, E.D.S., vol. xv. p. 385 (1918) ; Phil. Mag. xxxviii. 

 p. 317 (1919). 



Phil. Mag. S. 6. Vol. 39. No. 232. April 1920. 2 C 



