Wohl Parameter b Formula:
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Definition: Wohl parameter b is an empirical parameter characteristic to equation obtained from Wohl model of real gas.
Purpose: It helps in the thermodynamic modeling of real gases using the Wohl equation of state.
The calculator uses the formula:
Where:
Explanation: The Wohl parameter b is calculated as one-fourth of the critical molar volume of the gas.
Details: Accurate calculation of Wohl parameters is essential for precise thermodynamic modeling of real gases, particularly in industrial applications.
Tips: Enter the critical molar volume in m³/mol. The value must be > 0.
Q1: What is the physical significance of Wohl parameter b?
A: It represents the excluded volume per mole of gas molecules, accounting for the finite size of molecules.
Q2: How is critical molar volume determined?
A: It's typically determined experimentally or estimated from other critical properties using correlations.
Q3: Can this calculator be used for any gas?
A: Yes, as long as you have the critical molar volume for the gas of interest.
Q4: What are typical values for Wohl parameter b?
A: For common gases, values typically range from 0.00001 to 0.0001 m³/mol.
Q5: How does Wohl parameter b relate to van der Waals parameter b?
A: Both represent excluded volume, but they come from different equations of state and may have slightly different values.