of Liquids at their Boiling -Points. 



31 



Table V. 





Li 



w 



-A corr. 



L 2 



0-621 

 0-614 

 0-620 



0-492 



0487 



0-618 

 0-609 

 0-625 



0-511 

 0-502 

 0-494 



CHCl 3 and C 6 H 6 



0-621 

 0-614 

 0-621 



0-494 

 0489 



0622 

 0613 

 0628 



0512 

 0-504 

 0-496 



CC1 4 „ „ 



0,H 5 Br „ „ 



C,H.I „ „ 



1 



The quantity of electricity that passes in the course of an 

 experiment is summed in a voltameter introduced into the 

 primary circuit. 



By using two or more vessels simultaneously, several values 

 can be got by one experiment. 



The determinations were made with benzene. 



The equation used in reducing the observations was 



L = 



m 



M 



VxlO 8 



X T J 



where 



M = mass of liquid vaporized, 

 ra = mass of copper deposited, 

 e = electrochemical equivalent of copper, 

 V = D.P. in volts. 

 J = mechanical equivalent of heat. 



In Exp. I. 



m = 0*337 gramme, 

 ^=0-00003282, 

 J = 4'199xl0 7 . 



(a) 



M, = 12-179 grs. 

 V 1= 4-671 volts. 



.-. L = 93*78 calories. 



M 2 = 15-848 grs. 

 Y 2 = 5-960 volts. 



'. L = 91'96 calories. 



