Value of "a" of -van der Waals' Equation 201 



1 



es 



5 55 



-8 



" 



u 



5 ^3 i> > <3 o < >< 



O O 



^ 



a 



oc r^- vo O *o 

 M :' CN oo oo r^ fi 



3 



M ! ON ON ON 

 < , OO O CO 



O 00 00 CN O Tt-00 rh CN 



c^O CN r^-Tt-cs csvO 



CM CO ^ CN Tj- M 



-tf-oo 



GO lO 



ON r^ s . CO t-i CS 



CO CO CO CN CN 



s ON 00 O ON VO ON ^O OO CO^O^O^O O f^ O f^* O >O lO ^ ON < 



M ON CN t~- i i OO O CN CN CO OO CO O CN r^ CN i > t~^ ^t" lO M ON CO 



,00000000000000000000 ooooooooo 



i'6666 6000666666000000 060666000 



'ffiffiffiffiffiWWffiffi 



03 n \n ic n m o " 





IK ocr-^ MMiOM9eoAAn^i = *->vy> j, \_/ 



OOf^OOOOOOOOOOOOffic/} 



'c7 > u"crO*afaTcJ b 



2 







. 



.a a 



fl s 



