Is the approximation b = 0 permissible within the Van der Waals equation?

Djamel Eddine Zenkhri @Djamel-Eddine-Zenkhri

28 August 2023 1 614 Report

Under what conditions can the approximation of setting the coefficient 'b' to zero in the Van der Waals equation of state be considered valid?

Igor Faddeenkov

Under b=0, you would have that the gas is almost a perfect gas, which is not the reality, though you have gases, where b is close to 0.

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