TYPICAL PHYSICAL PROPERTIES OF COMMON GASES at 1.013 bar and 273.15 K
WARNING - These values are typical and may contain errors. You should check values with official data bases if you are using them for design purposes.
|
Name |
ρ density kg/m3 |
Ts Boiling Point K
|
hfg specific latent enthalpy of evaporation kJ/kg
|
cp specific heat capacity kJ/kg K |
γ
adiabatic index |
λ thermal conductivity W/m K |
η dynamic viscosity N s/m2 |
n-1 refractivity
|
Tc critical temperature K
|
pc critical pressure MPa
|
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Acetylene (C2.H2) | 1.173 | 189 | 1.590 | 1.26 | 18.4 x 10-3 | 9.35 x 10-6 | 606 x 10-6 | 309 | 6.14 | |
| 2 | Air | 1.293 | 83 | 214 | 1.005 | 1.401 | 24.1 x 10-3 | 18.325 x 10-6 | 292 x 10-6 | 132 | 3.77 |
| 3 | Air 288.15 K | 1.225 | 1.005 | 1.401 | 25.3 x 10-3 | 17.897 x 10-6 | 132 | 3.77 | |||
| 4 | Ammonia (NH3) | 0.771 | 240 | 1371 | 2.190 | 1.310 | 21.8 x 10-3 | 9.18 x 10-6 | 376 x 10-6 | 405 | 11.3 |
| 5 | Argon (Ar) | 1.784 | 87 | 158 | 0.524 | 1.667 | 16.2 x 10-3 | 21 x 10-6 | 281 x 10-6 | 151 | 4.86 |
| 6 | Carbon dioxide (CO2) | 1.977 | 195 | 364 | 0.815 | 1.300 | 14.5 x 10-3 | 13.8 x 10-6 | 451 x 10-6 | 304 | 7.38 |
| 7 | Carbon monoxide (CO) | 1.250 | 81 | 211 | 1.04 | 1.404 | 23.2 x 10-3 | 16.6 x 10-6 | 338 x 10-6 | 134 | 3.50 |
| 8 | Chlorine (Cl2) | 3.214 | 238 | 281 | 0.478 | 1.36 | 7.2 x 10-3 | 12.9 x 10-6 | 773 x 10-6 | 417 | 7.71 |
| 9 | Cyanogen (C2N2) | 2.337 | 252 | 432 | 1.720 | 1.26 | 9.28 x 10-6 | 835 x 10-6 | 401 | 6.0 | |
| 10 | Ethylene (C2H4) | 1.260 | 170 | 484 | 1.500 | 1.26 | 16.4 x 10-3 | 9.7 x 10-6 | 696 x 10-6 | 283 | 5.12 |
| 11 | Helium (He) | 0.179 | 4.25 | 25 | 5.240 | 1.66 | 141.5 x 10-3 | 18.6 x 10-6 | 36 x 10-6 | 5.3 | 0.23 |
| 12 | Hydrogen (H2} | 0.090 | 20.35 | 453 | 14.3 | 1.41 | 168.4 x 10-3 | 8.35 x 10-6 | 132 x 10-6 | 33.3 | 12.94 |
| 13 | Hydrogen chloride (HCl) | 1.640 | 189 | 414 | 0.796 | 1.40 | 1.38 x 10-3 | 447 x 10-6 | 325 x 10-6 | 8.26 | 87 |
| 14 | Hydrogen sulphide (H2S) | 1.538 | 211 | 553 | 1.020 | 1.32 | 12.0 x 10-3 | 11.7 x 10-6 | 634 x 10-6 | 374 | 9.01 |
| 15 | Methane (CH4) | 0.717 | 109 | 511 | 2.200 | 1.313 | 30.2 x 10-3 | 10.3 x 10-6 | 444 x 10-6 | 191 | 4.62 |
| 16 | Nitric oxide (NO) | 1.340 | 121 | 462 | 0.972 | 1.394 | 23.8 x 10-3 | 17.8 x 10-6 | 297 x 10-6 | 179 | 6.5 |
| 17 | Nitrogen (N2) | 1.250 | 77 | 199.1 | 1.040 | 1.404 | 24.3 x 10-3 | 16.7 x 10-6 | 297 x 10-6 | 126 | 3.39 |
| 18 | Nitrous oxide (N20) | 1.978 | 183 | 376 | 0.892 | 1.303 | 15.1 x 10-3 | 13.5 x 10-6 | 516 x 10-6 | 310 | 7.24 |
| 19 | Oxygen (O2) | 1.429 | 90 | 243 | 0.913 | 1.40 | 24.4 x 10-3 | 19.2 x 10-6 | 272 x 10-6 | 154 | 5.08 |
| 20 | Sulphur dioxide (SO2) | 2.927 | 263 | 403 | 0.645 | 1.26 | 7.7 x 10-3 | 11.7 x 10-6 | 686 x 10-6 | 430 | 7.88 |
COMPOSITION OF AIR
| COMPOSITION | VOLUME % | MASS% |
| NITROGEN | 78.9 | 75.53 |
| OXYGEN | 20.95 | 23.14 |
| ARGON | 0.93 | 1.28 |
| CARBON DIOXIDE | 0.03 | 0.05 |