﻿Law of 



' Molecular 



Attraction. 



1 





Table II. 





Liquid. 



T°. 



1 

 L-E. 



n. 





o 

 273 

 283 

 293 

 303 



86-16 

 83-44 

 80-40 

 7792 



41 

 4-0 

 4-0 

 4-1 



1 





273 

 293 

 313 

 333 

 353 



85-85 



810 



75-55 



71-66 



66-84 



32 

 31 

 3-0 

 33 

 3-4 



] 





296 



81-0 



4-2 





296 



293 

 293 



815 

 46-5 

 46-5 



43 



4-8 

 4-6 



Carbon tetrachloride ... 



Chloroform 



273 

 293 

 313 

 333 



62-45 

 61-29 

 59-00 



56-73 



3-0 

 3-3 

 32 

 31 





Benzene 



288 

 293 

 303 

 313 

 323 



97-4 

 96-6 

 94-7 



92-7 

 91-0 



4-5 

 4-5 

 44 

 4-4 

 4-3 



Carbon bisulphide 



i 



I 



293 



298 

 291 



80-31 

 79-14 



80-57 



40 

 4-0 

 3-7 





273 

 293 

 313 

 333 



101-0 (calc.) 

 96-6 „ 

 92-5 „ 



88 5 „ 



4-2 

 4-2 

 42 

 4-3 



1 : 



109 



an external pressure, is independent o£ the volume. The 

 question can be tested in the following way. 



If the total change of energy of a liquid which expands 

 at constant temperature is not entirely made up of the 

 changes in the potential energies of attraction and o? external 

 pressure, then we should expect to find that the specific heat 

 of a liquid (or a gas) at constant volume varies with the 

 density. Or, what comes to the same thing, that 



^Liquid 



— C t£ — 



'Liquid /'Liquid ' Vapour' 



where 0. ., and CL are the specific heats of a liquid a 



'Liquid /Liquid L l 



