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)
Click on the icon to switch between SI (W/m·K) and Imperial (BTU/h·ft·°F) units.
| Acetylene | 0.0214 |
| Air | 0.0264 |
| Ammonia | 0.0251 |
| Argon | 0.0177 |
| Boron trifluoride | 0.019 |
| Butadiene | 0.0157 |
| Butane | 0.0167 |
| Carbon dioxide | 0.0168 |
| Carbon monoxide | 0.025 |
| Chlorine | 0.0089 |
| Deuterium | 0.1306 |
| Dichlorodifluoromethane | 0.0099 |
| Diethyl ether | 0.0151 |
| Ethane | 0.0212 |
| Ethylene | 0.0206 |
| Fluorine | 0.0259 |
| Helium | 0.1557 |
| Hydrogen | 0.1866 |
| Hydrogen chloride | 0.0145 |
| Hydrogen sulfide | 0.0146 |
| Isobutane | 0.0171 |
| Krypton | 0.0095 |
| Methane | 0.0344 |
| Neon | 0.0494 |
| Nitric oxide | 0.0259 |
| Nitrogen | 0.026 |
| Nitrous oxide | 0.0174 |
| Oxygen | 0.0265 |
| Propane | 0.0185 |
| Radon | 0.0036 |
| Sulfur Dioxide | 0.0096 |
| Sulfur hexafluoride | 0.013 |
| Tetrafluoromethane | 0.016 |
| Xenon | 0.0055 |
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.