Property Tables Molar mass, gas constant and specific heats Tables admin May 21, 2016May 21, 2016 gas constant, Ideal-gas specific heats, Molar mass Property Tables – Substances Find Molar mass, gas constant, and ideal-gas specific heats of substances: AirĀ Ammonia Argon Bromine Isobutane n-Butane Carbon dioxide Carbon monoxide Chlorine Chlorodifluoromethane-R-22 Ethane Ethylene Fluorine Helium n-Heptane n-Hexane Hydrogen Krypton Methane Neon Nitrogen Nitric oxide Nitrogen dioxide Oxygen n-Pentane Propane Propylene Steam Sulfur dioxide Tetrachloromethane Tetrafluoroethane-R-134a Trifluoroethane-R-143a Xenon