Van der Waals Equation Calculator

Calculate real gas behavior using the Van der Waals equation of state

Volume (m³)(System volume)

Temperature (K)(Kelvin)

Number of Moles(mol)

Units

Attraction Parameter (a)(Pa·m⁶·mol⁻²)

Volume Parameter (b)(m³·mol⁻¹)

Select a gas for preset a and b values:

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Quick Tips

1Use consistent units throughout calculations
2Consider significant figures in results
3Document experimental conditions
4Verify results with control calculations