Van der Walls constant a

The sources are:

Symbol
$a_{VdW}$
Unit
bar.L$^2$/mol$^2$
Used in
$p_{VdW}$
Choices
GasFormulaValue
Air-1.358
N2N21.37
SF6SF67.857
CO2CO23.658
COCO1.472
O2O21.382
H2H20.2453
NH3NH34.225
SO2SO26.865
HeHe0.0346
ArAr1.355
KrKr2.325
XeXe4.192