Gas or Vapor | Formula | Molar Mass M g/mol | Specific Heat CV kJ/kg×K | Ratio of Specific Heats | Z0 km | Z1 km |
Hydrogen | H2 | 2 | 10.16 | 1.41 | 168.6 | 215.9 |
Helium | He | 4 | 3.12 | 1.66 | 66.3 | 107.7 |
Ammonia | NH3 | 17 | 1.66 | 1.32 | 23.6 | 27.5 |
Hydroxyl | OH | 17 | 1.27 | 1.41 | 21.1 | 27.0 |
Water Vapor | H2O | 18 | 1.46 | 1.32 | 21.4 | 24.2 |
Neon | Ne | 20 | 0.62 | 1.66 | 13.0 | 21.1 |
Acetylene | C2H2 | 26 | 1.37 | 1.23 | 17.0 | 16.3 |
Nitrogen | N2 | 28 | 0.74 | 1.40 | 12.1 | 15.3 |
Carbon Monoxide | CO | 28 | 0.72 | 1.40 | 11.8 | 14.9 |
Air |
| 29 | 0.72 | 1.40 | 11.9 | 14.9 |
Nitric Oxide | NO | 30 | 0.72 | 1.38 | 11.4 | 14.1 |
Oxygen | O2 | 32 | 0.66 | 1.39 | 10.6 | 13.3 |
Argon | Ar | 40 | 0.31 | 1.67 | 6.6 | 10.8 |
Propylene | C3H6 | 42 | 1.31 | 1.15 | 13.2 | 10.2 |
Propane | C3H8 | 44 | 1.48 | 1.13 | 13.9 | 10.0 |
Carbon Dioxide | CO2 | 44 | 0.65 | 1.29 | 9.1 | 9.8 |
Nitrous Oxide | N2O | 44 | 0.69 | 1.27 | 9.3 | 9.7 |
Butane | C4H10 | 58 | 1.53 | 1.09 | 11.8 | 7.1 |
Sulfur Dioxide | SO2 | 64 | 0.51 | 1.25 | 6.6 | 6.6 |
Chlorine | Cl2 | 71 | 0.36 | 1.33 | 5.4 | 6.2 |
Xenon | Xe | 131 | 0.10 | 1.65 | 2.0 | 3.3 |