Van der Waals Gas Critical Pressure Calculator

Calculate Van der Waals Critical Pressure

L²·atm/mol²
Input the 'a' constant for your gas (e.g., for CO₂).
L/mol
Input the 'b' constant for your gas (e.g., for CO₂).

Accurately determine the critical pressure (Pc) for real gases using the Van der Waals equation with our free online calculator. Input Van der Waals constants 'a' and 'b' to quickly calculate this crucial thermodynamic property for understanding gas liquefaction and phase behavior.

Formula:

Pc = a / (27b2)
Where:
Pc = Critical Pressure
a = Van der Waals constant 'a' (related to intermolecular forces)
b = Van der Waals constant 'b' (related to molecular volume)

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