Geology Reference
In-Depth Information
Table D.7: Calculation of the chemical potential of the elements according to
three different R.E. I; II and III (Lozano, 1989)
j
C
H
O
N
S
Ca
C
H
O
N
S
Ca C
H
O
N
S
Ca
H f;j , cal/mole
C p;j , cal/(mole K)
s j , (cal/ mole K)
I
-
94,052
-
28,898
0
0
-70,960
0
1.86 2.26 3.51 3.48 2.52
0
2.07
10.30
24.50
22.89
10.29
0
II
-
94,052
-
34,158
0
0
-70,960
0
1.86 7.25 3.51 3.48 2.52
0
2.07
-3.88
24.50
22.89
10.29
0
III -
94,052
-
34,158
0
0
-152,032
-194,398
1.86 7.25 3.51 3.48 -12.72
1.7 2.07
-3.88
24.50
22.89
-31.77
-53.37
e1
e2
e3
I
1
0
0
0
0
0
0
0.5
0
0
0
0
-1
-0.25
0.5
0
-1
0
II
1
0
0
0
0
0
0
0
0
0
0
0
-1
-0.25
0.5
0
-1
0
III 1
0
0
0
1
-1
0
0
0
0
0
0
-1
-0.25
0.5
0
-1.5
-0.5
e4
e5
j:00 :cal=mole
I
0
0
0
0.5
0
0
0
0
0
0
1
0
-98,546
-32,760
-7,777
-6,902
-85,372
0
II
0
0
0
0.5
0
0
0
0
0
0
1
0
-98,546
-32,767
-7,777
-6,902
-85,372
0
III 0
0
0
0.5
0
0
0
0
0
0
0
0
-98,546
-32,767
-7,777
-6,902
-145,967
-173,192
+RT 0 ln (x CO 2 ;00 P 0 ) e1 (x H 2 O;00 P 0 ) e2 (x O 2 ;00 P 0 ) e3 (x N 2 ;00 P 0 ) e4 (x SO 2 ;00 P 0 ) e5
(D.31)
Where: e1, e2, e3, e4 and e5 are the exponentials used to calculate the contribution of the entropy change for gaseous reference substances. x j;00
is calculated with the following equations for each gaseous component (Ashrae, 2005): x CO 2 ;00 = 0:0003(1x H 2 O;00 ); x O 2 ;00 = 0:2099(1x H 2 O;00 );
T 0 T 0 T 0 ln T 0
T 0
j;00 = H f;j T 0 s j +C p;j
x N 2 ;00 = 0:7898(1 x H 2 O;00 ); x SO 2 ;00 = 10 9 (1 x H 2 O;00 ); x H 2 O;00 = P v;H 2 O (T 0 ) = 217:99exp h 0;01
T 0 (374:16 t 0 ) P 8 i=1 F i (0:65 0; 01 0 ) i1 i
0 = T 0 273:15; F 1 = 741:9242; F 2 = 29:7210; F 3 = 11:55286; F 4 = 0:868535; F 5 = 0:1094098; F 6 = 0:439993; F 7 = 0:2520658
 
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