Solution of Atmospheric Nitrogen and Oxygen by Water. 401 



When the values o£ / for any gas are multiplied by the 

 corresponding solubilities, the product gives the initial rate 

 of solution in each case, since S=/s. It will be seen by 

 reference to Table X. that the value of S is practically 

 a constant over the range of temperature given. 



The value of S is approximately proportional to the 

 solubility, being about twice as great for oxygen as it is for 

 nitrogen ; and if | of the value for nitrogen be added to \ of 

 that for oxygen, a value for air is obtained which agrees 

 fairly closely with the actual figures thus : — J of '0083 +i of 

 •0160 ='00665 + '00320 = -00985, while the mean experi- 

 mental figure is ='0100. 



Temp. °C. 



25 



8-8 

 15*5 

 202 

 25-2 

 30-3 

 35-1 



35 

 11-2 



15-0 

 20-2 

 24 2 

 30-4 

 351 



36 



11-4 

 150 

 20-0 

 25-0 

 296 

 343 





Table X. 







Oxygen. 





/■ 



s. 



s=A 



•373 



from analysis 

 •04390 



•0164 



•434 



•03710 



•0161 



•499 



•03206 



■0160 



•545 



•02955 



•0161 



•591 



•02732 



•0161 



•641 



•02465 



•0158 



■687 



•02270 

 Nitrogen. 



•0156 



•372 



•02203 



•0082 



•448 



•01820 



•0081 



•490 



•01701 



■0083 



•543 



•01549 



•0084 



•593 



•01456 



•0086 



■647 



•01322 



•0085 



•696 



•01220 

 Air. 



•0085 



•352 



(Dittmar.) 

 •02700 



•0095 



•441 



•02260 



•0099 



•476 



•02120 



•0100 



•525 



•01930 



•0101 



•574 



•01780 



•0102 



•623 



•01660 



•0103 



•672 



•01550 



•0104 



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



