Critical Temperature Formula:
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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.
The calculator uses the formula:
Where:
Explanation: The formula calculates critical temperature based on Wohl's equation of state and reduced properties.
Details: Knowing the critical temperature is essential for understanding phase behavior, designing chemical processes, and predicting thermodynamic properties of real gases.
Tips: Enter all required parameters with positive values. The calculator will compute the critical temperature in Kelvin.
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.