118 M. R. Bunsen on the Law of Absorption of Gases. 

 of the second gas, 



«°hVv ^ 



of the nth gas. 



0-76(17! +* 8 +< 



u n hYv„ 



... (5) 

 0-76(0, + v 2 + v n ) v ' 



The unit volume of the absorbed gaseous mixture contains 

 therefore, of the first gas, 



... (6) 



«i»i 



of the second, 

 of the nth, 



a^ + a^-f a„v n ' 



(8) 

 a 1 t> 1 +« g '» 8 +a B n 



If, on the contrary, the amounts of the separate gases «,, « 2 , u n 

 contained in the unit of absorbed gas are known, the composition 

 of the gas before absorption, or of that remaining unabsorbed, 

 is found from the following equations. 



The unit of free gas contains of the first gas, 



«i 



(9) 



(10) 



(11) 



These formula? arc only strictly true on the supposition that 

 the relation originally existing between the volumes of the con- 

 stituent gases is not appreciably disturbed in consequence of the 

 absorption ; they are therefore, accurately speaking, only appli- 

 cable in the case in which a gaseous mixture of constant com- 

 position, either infinitely large or continually renewed, acts upon 

 a finite volume of liquid. If the volume of liquid employed is 



