Biomedical Engineering Reference
In-Depth Information
TABLE C.3
Composition of Standard Dry Air at Atmospheric Pressure
Gas
Volume (%)
Weight (%)
Molecular Weight
Nitrogen
78.09
75.47
28.02
Oxygen
20.95
23.2
32
Argon
0.933
1.28
39.94
Carbon dioxide
0.03
0.046
44.01
TABLE C.4
Temperature Dependence of Molar Specific Heat of
Some Gases
Molecular
Weight
Specific Heat (kJ/kmol K) at
Temperature,
T
(K)
Range of
Validity (K)
Gas
H
2
S
34
30.139
1
0.015T
300
600
0.0000052T
2
H
2
O
steam
18
34.4
1
0.000628T
1
300
2500
H
2
2
27.71
1
0.0034T
273
2500
CH
4
16
22.35
0.048T
273
1200
1
CO
28
27.62
0.005T
273
2500
1
818,363/T
2
CO
2
44
43.28
0.0114T
273
1200
1
2
785,712/T
2
O
2
32
34.62
0.00108T
300
5000
1
2
N
2
28
27.21
0.0042T
300
5000
1
Source: Adapted from Perry and Green (1997).
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