chapter one the estimation of physical properties

PURE COMPONENT CONSTANTS
2.36 CHAPTER TWO
F, F 1k , F 2j properties in the method of Constantinou and
Gani, Eq. (2-2.4)
ƒ (0) ,ƒ (1) ,ƒ (2)
functions in Pitzer’s correlation for P vp , Eqs.
(2-3.3) and (7-4.2) to (7-4.4)
M
molecular weight of substance
N A
Avogadro’s Number, 6.022142 10 23 molecules
mol 1
N atoms
number of atoms in substance
N k , M j
number of groups of type k in a molecule; N k
for First-Order groups in all methods and
M j for Second-Order groups in
Constantinou/Gani, Eq. (2-2.4), and Wilson
/Jasperson methods, Eqs. (2-2.8) and (2-
2.9b)
N r number of rings in substance, Eqs. (2-2.8)
and (2-2.9b)
P c
critical pressure, bar
pc1k, tb1k, tc1k, tfp1k, vc1k, w1k First-Order group Contributions for
Constantinou/Gani method, Table C-2.
pc2j, tb2j, tc2j, tfp2j, vc2j, w2j Second-Order group Contributions for
Constantinou/Gani method, Table C-3.
pck, tbk, tck, tfpk, vck
Group Contributions for Joback method, Table
C-1.
pck, tck
First-Order Group Contributions for Wilson/
Jasperson method, Table 2-3A.
pcj, tcj
Second-Order Group Contributions for Wilson
/Jasperson method, Table 2-3B.
pcbk, tbbk, tcbk, vcbk
Group Contributions for Marrero/Pardillo
method, Table 2-5.
R
gas constant, 8.31447 J mol 1 K 1
SP3, SP2, RING
number of various bond types in Yalkowsky
method, Eq. (2-4.8)
T
absolute temperature, K
T b
atmospheric boiling temperature, K
T c
vapor-liquid critical temperature, K
T ƒp
atmospheric freezing/melting temperature, K
V c
critical volume, cm 3 mol 1
W
weight for Second-Order groups in
Constantinou/Gani method; 0 for First
Order only, 1 for full estimation
Y
function in Wilson-Jasperson method for critical
pressure, Eq. (2-2.9)
Greek
dipole moment
* reduced dipole moment, Eq. (2-6.1)
sum of bond types in Yalkowsky method,
Eqs. (2-4.6) and (2-4.7)
symmetry number in Yalkowsky method, Eq.
(2-4.7)
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