Biomedical Engineering Reference
In-Depth Information
TABLE C.6
(Continued)
Heat of Formation
Δ
Absolute Entropy,
S
(J/K mol)
Gibbs Function of
Formation,
H
f
(kJ/mol)
G
f
(kJ/mol)
Substance
Δ
O
3(g)
142.7
238.9
163.2
K
(s)
0
64.2
0
(g) gaseous state; (l) liquid state; (s) solid state.
Source: Taken from University of Saskatoon chemistry web site.
TABLE C.7
Gas, Boudouard, and
Methane Formation Reactions (JANAF Thermochemical Tables)
Equilibrium Constants for the Water
Boudouard
Reaction
Methanation
Reaction
Water Gas Reaction
Temperature (K)
K
e2
ð
5
P
H
2
P
CO
=
P
H
2
O
Þ
P
CO
=
P
H
2
Þ
K
e1
ð
5
P
CO
2
Þ
K
e3
ð
5
P
CH
4
=
10
2
11
10
2
14
10
4
400
7.709
5.225
9.481
3
3
3
10
2
5
10
2
6
10
2
600
5.058
1.870
8.291
3
3
3
10
2
2
10
2
2
10
0
800
4.406
1.090
5.246
3
3
3
10
2
2
1000
2.617
1.900
2.727
3
10
2
10
3
10
2
8
1500
6.081
3
1.622
3
3.762
3
See Eqs. 7.70, 7.71 and 7.72 for definitions.
TABLE C.8
Specific Heat of Solid Biomass and Related Materials
Type
Specific Heat (kJ/kg K)
Temperature (K)
Carbon
a
0.70
299
349
1.60
329
1723
Cellulose
b
1.34
0.84
c
Graphite
273
373
1.62
a
329
1723
1.37
d
Wood (Oven dry, avg. 20 species)
273
379
0.84
c
Wood charcoal
273
273
a
Perry et al. (1984).
b
Kollman and Cote (1968).
c
Baumeister (1967).
d
Dunlap (1912).
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