Van der Waals constants (data page)

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 $p_c$ and temperature $T_c$ using the formulas $a = \frac \frac$ and $b = \frac$.

To convert from $\mathrm$ to $\mathrm$, multiply by 100.

To convert from $\mathrm$ to $\mathrm$, divide by 10.

To convert from $\mathrm$ to $\mathrm$, divide by 1000.

Units

1 J·m³/mol² = 1 m⁶·Pa/mol² = 10 L²·bar/mol²

1 L²atm/mol² = 0.101325 J·m³/mol² = 0.101325 Pa·m⁶/mol²

1 dm³/mol = 1 L/mol = 1 m³/kmol = 0.001 m³/mol (where kmol is kilomoles = 1000 moles)

References

{{DEFAULTSORT:Van Der Waals Constants (Data Page)
Gas laws
Constants (Data Page)