Value of "a" of van der Waals' Equation 199 



o ^ ft 



G G G v* 



c .2 .2.2 .25 



g ^ I g '5*3 " *5 8 



'-MO +1 o> c/5 c/3 G 



.2 ~ $ ro^O^O^O^.2 O3o3 ^^j 



's i r| all| 



tf> i ^^ ^H ^^ ^^ , ^ 



<! GO OOOOO< COGO GO 



y . 



&0 O 



g gg-l 



'-S i( O O ^oo OO MO ri-(NOO <N TJ-O OvOoovo (NOG rj- (N -d-o^-oovo OO 

 ^ Tt-rororO ro-<^ rO O iO iO ro ro "-> rj- 10 iOvC ^uoro-^-rDrOrO^- 



00 rf iO <-> 00 -" T!- SO CO O ^ *- 



-- - 1 - - 



,J 

 W 



M O<X) ^t- (N 1000 

 OO I ^-CNOt^ | - 1 Or^CN 



8iOOiOrO | - | iO^O(NO v O^OOOrO < ^-'- i r^OOO | - t lOCNrOVO^J-'^-rOiO 

 OOOOOOOOOOOOOOOOOO.^-' COOOOOOO 



OOOOOOOOOOOOOOOOOOOOO OOOOCOOO 



^ O^ a s . ^ 2SJ s s s is o 



^ wafwafflffl 



OO OC^OCJ ffi O OOCJ UO O O O CJ CJ OOOOOOOO 



CU 

 "O 0> ?! -M 



s sa_S" -^ . a ^ 



i -a S^a'sf | I S 1^1 



3 C fe _, , 3 p>^ o3 o3 O C <U ^ ^ 



ssj-as-eegilll-aliffllll f-sllilfl 



I 111 lllil^l y.a|.li.l.e-.f fsJlB 8 



<<<-<o5t35WSoOPQQQQQQ QQfcffiffiffi^^ 



