Thermal Conductivity of Different Gases

The following table provides a comprehensive list of thermal conductivity values for different gases, taken at room temperature (approximately 25°C or 77°F) and 1 atmospheric (atm) pressure. (1 atm = 101,325 Pa)

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Thermal Conductivity of Gases
Acetylene0.0214
Air0.0264
Ammonia0.0251
Argon0.0177
Boron trifluoride0.019
Butadiene0.0157
Butane0.0167
Carbon dioxide0.0168
Carbon monoxide0.025
Chlorine0.0089
Deuterium0.1306
Dichlorodifluoromethane0.0099
Diethyl ether0.0151
Ethane0.0212
Ethylene0.0206
Fluorine0.0259
Helium0.1557
Hydrogen0.1866
Hydrogen chloride0.0145
Hydrogen sulfide0.0146
Isobutane0.0171
Krypton0.0095
Methane0.0344
Neon0.0494
Nitric oxide0.0259
Nitrogen0.026
Nitrous oxide0.0174
Oxygen0.0265
Propane0.0185
Radon0.0036
Sulfur Dioxide0.0096
Sulfur hexafluoride0.013
Tetrafluoromethane0.016
Xenon0.0055

The thermal conductivity of gases can vary with factors such as temperature and impurities.

References: 1) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017. 2) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018.