Van der waals constants

1. Jan 26, 2005

diegojco

Could anyone here say me what's the constants of van der waals for the Sulfur Hexaflouride (SF6)

2. Jan 26, 2005

diegojco

please anyone can help me? it is so urgent since this is for draw the critical point and the critical isothermal for the laboratory. Or you can say me what's the critical molar volume or the critical volume for this gas, because I have the critical pressure and temperature.