Critical Molar Volume Formula:
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Definition: This calculator determines the critical molar volume of a real gas using the Wohl equation, given the Wohl parameter c, critical pressure, and critical temperature.
Purpose: It helps in thermodynamic calculations and understanding the behavior of real gases at critical conditions.
The calculator uses the formula:
Where:
Explanation: The formula calculates the volume occupied by one mole of gas at its critical point using the Wohl parameter and critical properties.
Details: Critical molar volume is essential for understanding gas behavior near critical conditions and is used in equations of state for real gases.
Tips: Enter the Wohl parameter c, critical pressure in Pascals, and critical temperature in Kelvin. All values must be > 0.
Q1: What is the Wohl parameter c?
A: It's an empirical parameter characteristic to the Wohl equation of state for real gases.
Q2: How do I find critical pressure and temperature?
A: These are typically available in thermodynamic tables for common substances.
Q3: What units should I use?
A: Pressure must be in Pascals, temperature in Kelvin, and the result is in m³/mol.
Q4: Why is critical molar volume important?
A: It helps predict gas behavior at critical conditions and is used in thermodynamic models.
Q5: Can this be used for all gases?
A: Yes, as long as you have the correct Wohl parameter and critical properties for the gas.