ON THE HALOGEN HYDKIDES AS CONDUCTING SOLVENTS. 



107 



TABLE I. (continued). 



* MclNTOSH and STEELE. 



t ESTREICHER, ' Zeit. Phys. Chem.,' 1896, 20, p. 605. 

 J LADENBERG and KRUGEL, ' B. B.,' 1900, 33, p. 637. 

 OLSZEWSKI, ' Monatshefte fiir Chemie,' 7, p. 371. 



Heats of Evaporation. 



CLAUSIUS has shown that the heat of vaporisation of a liquid can be calculated 



from the equation 



dp ^ 



~~ 



^ 



dT ~~ KT 2 ' 

 p 2 



