( 2005) 
where pen tx and 7, respectively represent: critical pressure, 
volume and temperature of the mixture taken as homogeneous, and 
therefore : 
TIO) 
mmm 
(2e) dprk Pak Wyk ie) Pek Ol ae (& 
a = 1 dd) t ait 
oT de van dz dw Ter de OT 
( dp ) an sos (=) Pak Ir (25) Pek zk En Ge 
Ox dv/7 ek de \O@ vy, de \d@ Ua de ot) 
Pak dT xy der 
T 5 
thE k Vak dz 
This becomes for z—= 0, as then z=w=t=l, 
(sr) p= — oe * aaa) 
in which we have called: 
Ad yee 1 dpe 
Ee Zj = 
Ty dz pr dr 
With these we have for equations (10) and (1c): 
ware, oat -.. + (2a) 
rea Nene 
1 dp _ eN 
ANNES Ge 
sot 
if 
