Wohl Parameter (c) of Real Gas given Actual and Reduced Parameters Calculator

Wohl Parameter c Formula:

\[ c = 4 \times \frac{P_{gas}}{P_{reduced}} \times \left(\frac{T_{gas}}{T_{reduced}}\right)^2 \times \left(\frac{V_{molar}}{V_{reduced}}\right)^3 \]

Pressure of Gas:

Reduced Pressure:

Temperature of Real Gas:

Reduced Temperature:

Molar Volume of Real Gas:

m³

Reduced Molar Volume:

m³

Wohl Parameter c:

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

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

Purpose: It helps in describing the behavior of real gases, especially at high pressures and low temperatures where ideal gas law fails.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ c = 4 \times \frac{P_{gas}}{P_{reduced}} \times \left(\frac{T_{gas}}{T_{reduced}}\right)^2 \times \left(\frac{V_{molar}}{V_{reduced}}\right)^3 \]

Where:

\( c \) — Wohl parameter (dimensionless)
\( P_{gas} \) — Pressure of gas (Pascal)
\( P_{reduced} \) — Reduced pressure (dimensionless)
\( T_{gas} \) — Temperature of real gas (Kelvin)
\( T_{reduced} \) — Reduced temperature (dimensionless)
\( V_{molar} \) — Molar volume of real gas (m³)
\( V_{reduced} \) — Reduced molar volume (m³)

Explanation: The formula relates the actual gas parameters to their reduced counterparts to calculate the Wohl parameter c.

3. Importance of Wohl Parameter Calculation

Details: Accurate calculation of Wohl parameters is essential for predicting real gas behavior in industrial processes, chemical engineering applications, and thermodynamic studies.

4. Using the Calculator

Tips: Enter all required parameters in appropriate units. All values must be positive numbers. Reduced parameters are dimensionless ratios.

5. Frequently Asked Questions (FAQ)

Q1: What are reduced parameters?
A: Reduced parameters are the ratio of actual parameters to their critical values (pressure, temperature, volume).

Q2: Why is the Wohl equation important?
A: It provides a more accurate description of real gas behavior compared to the ideal gas law, especially under extreme conditions.

Q3: What units should I use for input?
A: Pressure in Pascals, temperature in Kelvin, and volumes in cubic meters. Reduced parameters are dimensionless.

Q4: Can this calculator be used for any gas?
A: Yes, as long as you have the correct input parameters for your specific gas.

Q5: What's the typical range for Wohl parameter c?
A: The value varies significantly depending on the gas and conditions, but typically ranges between 0 and 10 for most common gases.