The following table lists the Van der Waals constants (from the Van der Waals equation) for a number of common gases and volatile liquids. These constants are generally calculated from the critical pressure and temperature using the formulas and .
To convert from to , multiply by 100.<br> To convert from to , divide by 10.<br> To convert from to , divide by 1000.
1 J÷m<sup>3</sup>/mol<sup>2</sup> = 1 m<sup>6</sup>÷Pa/mol<sup>2</sup> = 10 L<sup>2</sup>÷bar/mol<sup>2</sup>
1 L<sup>2</sup>atm/mol<sup>2</sup> = 0.101325 J÷m<sup>3</sup>/mol<sup>2</sup> = 0.101325 Pa÷m<sup>6</sup>/mol<sup>2</sup>
1 dm<sup>3</sup>/mol = 1 L/mol = 1 m<sup>3</sup>/kmol = 0.001 m<sup>3</sup>/mol (where kmol is kilomoles = 1000 moles)