Consider 20.0 moles of CO2 in a 1.0 liter container at 300.0 K. What is the pressure predicted by the van der Waals equation? The ideal gas law constant is 0.08206 [L•atm] / [mol•K]. For CO2, the pressure correction constant is 3.658 L2•atm / mol 2, and the volume correction constant is 0.04286 L / mol.