Solutions Manual for Molecular Thermodynamics of Fluid Phase Equilibria, 3rd Edition by John M. Prausnitz, Rüdiger N. Lichtenthaler, and Edmundo Gomes de Azevedo

All 12 Chapters Covered
g g g




SOLUTION MANUAL
g

, Cg g Og g Ng g Tg g Eg g Ng g Tg g S




Preface i

Solutionsg tog Problemsg Chapterg 2 1

Solutionsg tog Problemsg Chapterg 3 17

Solutionsg tog Problemsg Chapterg 4 29

Solutionsg tog Problemsg Chapterg 5 49

Solutionsg tog Problemsg Chapterg 6 81

Solutionsg tog Problemsg Chapterg 7 107

Solutionsg tog Problemsg Chapterg 8 121

Solutionsg tog Problemsg Chapterg 9 133

Solutionsg tog Problemsg Chapterg 10 153

Solutionsg tog Problemsg Chapterg 11 165

Solutionsg tog Problemsg Chapterg 12 177

, Sg g Og g Lg g Ug g Tg g Ig g Og g Ng g S Tg g O Pg g Rg g Og g Bg g Lg g Eg g Mg g S


Cg g Hg g Ag g Pg g Tg g Eg g R 2




1. Fromgproblemgstatement,gwegwantgtogfindg bP / T g . g g g
vg
g Usinggthegproduct-rule,
FGPIJ  FGvIJ FGPIJ
g g g


H T K H T K H v K
g g
g

v
gg g
g g
g
g
P
g
g g
T

Byg definition,
F I
1g g vg
gP  G J
v H T K
g g g
P

and
1g gv FI
T gg g
vg gPg H KJ
G T

Then,
F P I
g g g
g Pgg 1.8gg10
5
GH T K J 5.32gg10
6
g33.8gbargDC-1
g g
v 
T

Integratingg theg aboveg equationg andg assumingg Pg andg Tg constantg overg theg temperatureg range
,gwegobtain
g
Pgg PggT
T

ForgTg=g1C,gwegget

Pgg33.8gbar




1

, 2 Solutionsg Manual




2. Giveng theg equationg ofg state, FV I g


PG  bJ  RT
Hn K gg
g
g
g




weg find:
FGS IJ  FGPIJ  nR g
gg g
g
g g
g g


H V K H T K V  nb
g g
T
g g
V g g


FGS IJ  FGV IJ   nR
g
g
gg g
g
g gg

H P K H T K P
g g
T
g g
P

FGU IJ  TFGPIJ  P  0
g
g
g g g g
g
g g gg

H V K H T K
g g
T
g g
V

F U I F U I F V I
H PGK J  HGV KJH GP K J  0
g g g
g gg g g g gg
g g g g g g g
T T T
FGH IJ  TFGV IJV  nb
g
g
g g g
g
g g g


H P K
g g HT K T
g g



Forg ang isothermalg change,

z
Sgg
V2g


Vg1
FGP IJ
HT K
g

g
g


g
V
V gnb
dVggnRglng 2g
V1ggnb

g P1
gnRglng
P2


 Ug
z
LF U I GF VJI O dP  0
P2g

NMGH V JK HP K QP
P1g
g
g


g T
g

gg
g g


Tg g
g g





H g
zL F V I O
P2g



NMT GHT JK  VPQdP  nbbP  P g
P 1g
g
g g




g
Pg g
g g gg 2g g 1


G  H  TS  nbbP  P g nRT ln G
gg gg gg
F P IJ g g g g g
g

g 1g


HP K 2 1
g 2g



F PI
A  U  TS  nRT ln G
g 1g
gg
HP K
g g g g g
g g



J 2