Real Gas Temperature Formula:
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Definition: This calculator determines the actual temperature of a real gas using the Redlich-Kwong equation of state, given the reduced temperature, parameter b, and critical pressure.
Purpose: It helps in thermodynamic calculations for real gases where ideal gas assumptions don't apply, particularly in chemical engineering and physical chemistry applications.
The calculator uses the formula:
Where:
Explanation: The formula relates the reduced temperature to the actual temperature through the Redlich-Kwong parameter b and critical pressure.
Details: Accurate temperature calculation is crucial for designing chemical processes, predicting phase behavior, and understanding gas properties under various conditions.
Tips: Enter the reduced temperature (dimensionless), Redlich-Kwong parameter b, and critical pressure in Pascals. All values must be positive.
Q1: What is reduced temperature?
A: Reduced temperature is the ratio of the actual temperature to the critical temperature of the substance (T/Tc).
Q2: How do I find the Redlich-Kwong parameter b?
A: Parameter b can be calculated from critical properties or found in thermodynamic tables for specific gases.
Q3: What units should I use for critical pressure?
A: The calculator uses Pascals (Pa) for critical pressure. 1 atm = 101325 Pa.
Q4: Why is the universal gas constant important?
A: It provides the necessary proportionality constant to relate temperature, pressure, and volume in gas equations.
Q5: Can this be used for any real gas?
A: Yes, as long as you have the correct parameter b and critical pressure for the specific gas.