400 Prof.Adeney and Mr. Becker: Determination of Rate of 



where w = total quantity of gas in solution at any moment, 

 S = the initial rate of solution per unit area, /= the coefficient 

 of escape of the gas from the liquid per unit area and 

 volume, A = area of surface, and p = pressure of the gas. 



The values of b for different temperatures and different 

 gases have been found for various temperatures using a 

 volume of water of 101"8 c.c. and an exposed area of 

 71*3 sq. cm. ; hence since 



we can calculate the values of /. The values are given in 

 the second column of Table X., and when they are plotted 

 against temperature in each case, three straight lines lying 

 very close together are obtained, as shown in fig. 8. 



Fig. 8. 



£ "4 



-2 

















^z> 















^ 



^ 



V 

























-P^s 



?8r^ 















&■ 



is 

















» 























































25 



30 



35 



Temperature in degrees centigrade. 



Values of /"plotted against temperature. 

 Formulae :— f=-0096 (T-236-5) for Oxygen. 

 /=-0103 (T- 240-0) for Nitrogen. 

 f=-0099 (T- 239-3) for Air. 



