Gas molecule
Mean free path (
) m
Pore radius (m)
Permeability (
)
Ar
3.15E−04
4.72E−12
3.67E−08
He
3.63E−04
1.09E−11
5.92E−08
N2
2.96E−04
4.45E−12
4.48 E−08
CO2
1.11E−04
2.22E−12
4.64E−08
| Gas molecule | Mean free path ( | Pore radius (m) | Permeability ( |
| Ar | 3.15E−04 | 4.72E−12 | 3.67E−08 |
| He | 3.63E−04 | 1.09E−11 | 5.92E−08 |
| N2 | 2.96E−04 | 4.45E−12 | 4.48 E−08 |
| CO2 | 1.11E−04 | 2.22E−12 | 4.64E−08 |