This chart gives the thermal conductivity of gases as a function of temperature.
Unless otherwise noted, the values refer to a pressure of 100 kPa (1 bar) or to the saturation vapor pressure if that is less than 100 kPa.
The notation P = 0 indicates the low pressure limiting value is given. In general, the P = 0 and P = 100 kPa values differ by less than 1%.
Units are milliwatts per meter kelvin.
|
Name |
100 K |
200 K |
300 K |
400 K |
500 K |
600 K |
- |
Air |
9.4 |
18.4 |
26.2 |
33.3 |
39.7 |
45.7 |
Ar |
Argon |
6.2 |
12.4 |
17.9 |
22.6 |
26.8 |
30.6 |
H2 |
Hydrogen (P = 0) |
68.6 |
131.7 |
186.9 |
230.4 |
- |
- |
H2O |
Water |
- |
- |
18.7 |
27.1 |
35.7 |
47.1 |
H2S |
Hydrogen sulfide |
- |
- |
14.6 |
20.5 |
26.4 |
32.4 |
H3S |
Ammonia |
- |
- |
24.4 |
37.4 |
51.6 |
66.8 |
He |
Helium (P = 0) |
75.5 |
119.3 |
156.7 |
190.6 |
222.3 |
252.4 8 |
Kr |
Krypton (P = 0) |
3.3 |
6.4 |
9.5 |
12.3 |
14.8 |
17.1 |
NO |
Nitric oxide |
- |
17.8 |
25.9 |
33.1 |
39.6 |
46.2 |
N2 |
Nitrogen |
9.8 |
18.7 |
26.0 |
32.3 |
38.3 |
44.0 |
N2O |
Nitrous oxide |
- |
9.8 |
17.4 |
26.0 |
34.1 |
41.8 |
Ne |
Neon (P = 0) |
22.3 |
37.6 |
49.8 |
60.3 |
69.9 |
78.7 |
O2 |
Oxygen |
9.3 |
18.4 |
26.3 |
33.7 |
41.0 |
48.1 |
O2S |
Sulfur dioxide |
- |
- |
9.6 |
14.3 |
20.0 |
25.6 |
Xe |
Xenon (P = 0) |
2.0 |
3.6 |
5.5 |
7.3 |
8.9 |
10.4 |
CCl2F2 |
Dichlorodifluoromethane |
- |
- |
9.9 |
15.0 |
20.1 |
25.2 |
CF4 |
Tetrafluoromethane (P = 0) |
- |
- |
16.0 |
24.1 |
32.2 |
39.9 |
CO |
Carbon monoxide (P = 0) |
- |
- |
25.0 |
32.3 |
39.2 |
45.7 |
CO2 |
Carbon dioxide |
- |
9.6 |
16.8 |
25.1 |
33.5 |
41.6 |
CHCl3 |
Trichloromethane |
- |
- |
7.5 |
11.1 |
15.1 |
- |
CH4 |
Methane |
- |
22.5 |
34.1 |
49.1 |
66.5 |
84.1 |
CH4O |
Methanol |
- |
- |
- |
26.2 |
38.6 |
53.0 |
C2H2 |
Acetylene |
- |
- |
21.4 |
33.3 |
45.4 |
56.8 |
C2H4 |
Ethylene |
- |
11.1 |
20.5 |
34.6 |
49.9 |
68.6 |
C2H6 |
Ethane |
- |
11.0 |
21.3 |
35.4 |
52.2 |
70.5 |
C2H6O |
Ethanol |
- |
- |
14.4 |
25.8 |
38.4 |
53.2 |
C3H6O |
Acetone |
- |
- |
11.5 |
20.2 |
30.6 |
42.7 |
C3H8 |
Propane |
- |
- |
18.0 |
30.6 |
45.5 |
61.9 |
C4H10 |
Butane |
- |
- |
16.4 |
28.4 |
43.0 |
59.1 |
C5H12 |
Pentane |
- |
- |
14.4 |
24.9 |
37.8 |
52.7 |
C6H14 |
Hexane |
- |
- |
- |
23.4 |
35.4 |
48.7 |
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References:
- Kadoya, K. Matsunaga, N., and Nagashima, A., Viscosity and thermal conductivity of dry air in the gaseous phase, J. Phys. Chem. Ref. Data, 14, 947, 1985.
- Younglove, B. A. and Hanley, H. J. M., The viscosity and thermal conductivity coefficients of gaseous and liquid argon, J. Phys. Chem. Ref. Data, 15, 1323, 1986.
- Holland, P. M., Eaton, B. E., and Hanley, H. J. M., A correlation of the viscosity and thermal conductivity data of gaseous and liquid ethylene, J. Phys. Chem. Ref. Data, 12, 917, 1983.
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