Value of "a" of van der Waals' Equation 193 



CO CO CO CO CO CO CO 



^J -<t ^1 ^1 ^4 ^J ^1 



ODVO 00 00 OOVO 00 

 Cn \O ^4 -^ O Cn to 



tO t-H ^J HH O ON Ki 



-fi. HH Cn vo M K) ^| 



N) 00 00 O 4* M ON 



V 



X 



o o H 

 o * I o 



I o I \ 



ON 

 ^ x 



^ 

 o 



Co Co Co Co Co Co 

 00 00 00 K) K) to 



Ni K) tO HI t-H ^-1 



O O O Cn Cn Cn 



Cn Cn Cn 



Cn Cn Cn 4^ -fi. 4^. 

 to K) to to K> to 



i 

 8 





e. 



