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Critical Temperature of Real Gas using Wohl Parameter c and other Actual and Reduced Parameters Calculator

Critical Temperature Formula:

\[ T'_c = \sqrt{\frac{c}{4 \times \left(\frac{P_{rg}}{P_r}\right) \times \left(\left(\frac{V'_m}{V'_r}\right)^3\right)}} \]

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1. What is Critical Temperature of Real Gas?

Definition: Critical Temperature of Real Gas is the highest temperature at which the substance can exist as a liquid. At this phase boundaries vanish, and the substance can exist both as a liquid and vapor.

Purpose: This calculator helps determine the critical temperature using Wohl parameters and other reduced properties.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ T'_c = \sqrt{\frac{c}{4 \times \left(\frac{P_{rg}}{P_r}\right) \times \left(\left(\frac{V'_m}{V'_r}\right)^3\right)}} \]

Where:

Explanation: The formula calculates critical temperature based on Wohl's equation of state and reduced properties.

3. Importance of Critical Temperature Calculation

Details: Knowing the critical temperature is essential for understanding phase behavior, designing chemical processes, and predicting thermodynamic properties of real gases.

4. Using the Calculator

Tips: Enter all required parameters with positive values. The calculator will compute the critical temperature in Kelvin.

5. Frequently Asked Questions (FAQ)

Q1: What are Wohl parameters?
A: Wohl parameters are empirical constants used in Wohl's equation of state to describe the behavior of real gases.

Q2: How do I obtain reduced properties?
A: Reduced properties are obtained by dividing the actual property by its corresponding critical property.

Q3: What is the significance of critical temperature?
A: Above the critical temperature, a gas cannot be liquefied by pressure alone, regardless of how high the pressure is.

Q4: Can this calculator be used for all gases?
A: Yes, as long as you have the correct Wohl parameters and reduced properties for the specific gas.

Q5: What units should I use for inputs?
A: Use Pascals for pressure, cubic meters for volume, and Kelvin for temperature. Reduced properties are dimensionless.

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