Volume of Real Gas Formula:
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Definition: This calculator computes the actual volume of a real gas using Clausius parameter b, critical parameters, and reduced volume.
Purpose: It helps in thermodynamics and chemical engineering calculations where real gas behavior deviates from ideal gas assumptions.
The calculator uses the formula:
Where:
Explanation: The formula accounts for molecular volume (b') and intermolecular forces through the critical parameters.
Details: Accurate volume calculations are essential for designing chemical processes, storage systems, and understanding gas behavior under various conditions.
Tips: Enter Clausius parameter b, critical temperature (K), critical pressure (Pa), and reduced volume. All values must be > 0 (except b which can be 0).
Q1: What is Clausius parameter b?
A: It represents the volume occupied by the gas molecules themselves in the Clausius equation of state.
Q2: How do I find critical parameters?
A: Critical temperature and pressure are tabulated properties for each substance available in chemical databases.
Q3: What is reduced volume?
A: It's the ratio of actual volume to critical volume, a dimensionless quantity used in corresponding states theory.
Q4: When is this calculation most important?
A: For gases at high pressures or low temperatures where they deviate significantly from ideal behavior.
Q5: What are typical units for these parameters?
A: b' in m³/mol, T'c in Kelvin, P'c in Pascals, Vr dimensionless (but input as m³ in this calculator).