Research website of Vyacheslav Gorchilin
2019-09-09
The mobility of ions in gases
In the reference table are presented the experimental data of the mobility of ions of some gases is positive (μ+) and negative (μ-) measured in [cm2/V*s]. The gas pressure corresponds to the normal, and the temperature of 18-20° C. Also, an approximate value of molecular weight gases (M).
 Gas M μ+ μ- Nitrogen 28 1.27 1.84 Ammonia 17 0.74 0.80 Benzene 78 0.18 0.21 Hydrogen 2 6.70 7.95 The air 29 1.38 1.87 Helium 4 5.09 6.31 Nitrous oxide 44 0.82 0.90 Oxygen 32 1.32 1.83 Carbon monoxide 28 1.10 1.40 Water vapor - 0.47 0.43 Carbon dioxide 44 0.84 1.05
The motion of ions in gases under a constant and relatively small electric fields, the average value of the speed $$v$$ in the direction of the lines of force of this field is proportional to the tension $$E$$: $v = \mu E$ the Coefficient of proportionality is the mobility of ions $$\mu$$.
The materials used
1. A BRIEF PHYSICO-TECHNICAL REFERENCE. 1, - M.: 1960