Actual Molar Volume of Wohl's Real Gas using other Critical and Reduced Parameters Calculator

Formula Used:

\[ V'm = V'r \times \left( \frac{4 \times [R] \times T'c}{15 \times P,c} \right) \]

Molar Volume of Real Gas (m³):

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1. What is Actual Molar Volume of Wohl's Real Gas?

Definition: The actual molar volume of a real gas is the volume occupied by one mole of the gas at a given temperature and pressure, accounting for real gas behavior.

Purpose: This calculator determines the actual molar volume using reduced parameters and critical properties based on Wohl's equation of state.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ V'm = V'r \times \left( \frac{4 \times [R] \times T'c}{15 \times P,c} \right) \]

Where:

\( V'm \) — Molar Volume of Real Gas (m³)
\( V'r \) — Reduced Molar Volume for P-R Method
\( [R] \) — Universal gas constant (8.314 J/mol·K)
\( T'c \) — Critical Temperature of Real Gas (K)
\( P,c \) — Critical Pressure (Pa)

Explanation: The formula relates reduced molar volume to actual molar volume using critical properties and the gas constant.

3. Importance of Molar Volume Calculation

Details: Accurate molar volume calculations are essential for designing chemical processes, predicting gas behavior, and optimizing industrial applications.

4. Using the Calculator

Tips: Enter the reduced molar volume, critical temperature (in Kelvin), and critical pressure (in Pascals). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is reduced molar volume?
A: Reduced molar volume is the ratio of the actual molar volume to the critical molar volume of the substance.

Q2: How do I find critical properties?
A: Critical properties are typically available in chemical engineering handbooks or material safety data sheets for pure substances.

Q3: What's the difference between ideal and real gas molar volume?
A: Ideal gas volume follows the ideal gas law exactly, while real gas volume accounts for molecular interactions and finite molecular size.

Q4: When is this calculation most important?
A: This calculation becomes crucial at high pressures and low temperatures where gases deviate significantly from ideal behavior.

Q5: What are typical units for molar volume?
A: Molar volume is typically expressed in cubic meters per mole (m³/mol) or liters per mole (L/mol).