Table 1. Kinetic Diameter, Molecular Weight, Quadrupole Moment, and Critical Temperature of Various Gas Species45.
| gas species | kinetic diameter [nm] | molecular weight [g/mol] | quadrupole moment [cm2] ×1040 | critical temperature [K] |
|---|---|---|---|---|
| He | 0.26 | 4.00 | 0.00 | 5.19 |
| CO2 | 0.33 | 44.01 | –13.71 | 304.13 |
| Ar | 0.34 | 39.94 | 0.00 | 151.00 |
| N2 | 0.36 | 28.01 | –4.91 | 126.20 |