﻿Kinetic Theory of Adsorption, 



f>99 



pressure of component 1 which would produce the same 

 idsorption X l in the absence of component 2, and similarly 



for p 2 Q. Then 

 and 



a{KJX 2 ' 



Pi =Pioe 



P'2 —P20 e 



Table IV. 



Gas. 



Argun 



Methane 



Carbon Dioxide... 

 Carbon Dioxide... 



a=3*l2c.c... 



a = 7'41 c.c 



Ammonia 



Water Vapour ... 



«=3'35 gms. 



u = 2'70 gms. 



«=2"00 gms. 

 = 0-57 gm. 



Argon 



Oxygen 



Nitrogen 



Methane 



Carbon Monoxide 



Absorbent. 

 Charcoal 



Observei 



Ho m fray 



Chappuis 

 Travers 



Mean of the t7tr< 



Charcoal 



Mica 



Kichardson 

 Brown 



Langmuir 



\ cal. 



3690 

 4800 

 6390 



7140 



7340 



6950 



7410 



10J30 



9580 



9460 



9305 



611 



651 



f 889 



1 1223 



1397 



1618 



1690 



2155 



Q-KT ca 



3090 (Dewar) 



6700 (Chappuis) 

 7800 (Chappuis) 



II. X 10 denotes the adsorption of component 1 in the 

 absence of component 2, component 1 being at pressure p\ ; 

 similarly for X 20 . X x and X 2 denote as before the adsorp- 

 tions in a mixed system of partial pressures p x and p. 2 . 

 Then * 



x 1= =x 10 «~- fliXa/Xti 



and X 2 = X 20 e- a * XlJXl '. 



III. Combining the above, we have for constant X 2 , 

 Xipi = X 10 p 10 , 



nd for constant X x . 



X 2 ^2~X 2 o/?20- 



* These relations have been roughly verified on observations of Bakr 

 & King (Jour. C'hem. Soc. cxix. p. 453 (1921)). 



