1. What is Wohl Parameter (b) of Real Gas?

Definition: Wohl parameter b is an empirical parameter characteristic to equation obtained from Wohl model of real gas.

Purpose: It helps in describing the behavior of real gases, accounting for molecular volume and intermolecular forces.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( b \) — Wohl parameter b
• \( [R] \) — Universal gas constant (8.314 J/mol·K)
• \( T'_c \) — Critical Temperature of Real Gas (K)
• \( P'_c \) — Critical Pressure for Peng Robinson Model (Pa)

Explanation: The formula relates the Wohl parameter to the critical temperature and pressure of the gas.

3. Importance of Wohl Parameter Calculation

Details: Accurate calculation of Wohl parameters is essential for modeling real gas behavior in chemical engineering and thermodynamics applications.

4. Using the Calculator

Tips: Enter the critical temperature in Kelvin and critical pressure in Pascals. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the physical significance of Wohl parameter b?
A: It represents the volume excluded by a mole of particles, accounting for the finite size of molecules.

Q2: How does critical temperature affect the Wohl parameter b?
A: Higher critical temperatures generally result in larger b values, as the parameter is directly proportional to critical temperature.

Q3: What's the relationship between critical pressure and Wohl parameter b?
A: The parameter b is inversely proportional to critical pressure - higher critical pressures yield smaller b values.

Q4: Can this calculator be used for any real gas?
A: Yes, as long as you have accurate critical temperature and pressure values for the gas in question.

Q5: What are typical units for Wohl parameter b?
A: The parameter b typically has units of m³/mol in SI units.