Reduced Temperature Formula:
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Definition: Reduced Temperature is the ratio of the actual temperature of the fluid to its critical temperature. It is dimensionless.
Purpose: This calculator determines the reduced temperature using the Reduced Redlich-Kwong equation of state for real gases.
The calculator uses the formula:
Where:
Explanation: The formula combines reduced pressure and reduced molar volume to calculate the reduced temperature according to the Redlich-Kwong equation of state.
Details: Reduced properties are crucial in thermodynamics for creating generalized correlations that can be applied to many substances using the principle of corresponding states.
Tips: Enter the reduced pressure and reduced molar volume (must be > 0.26). The calculator will compute the reduced temperature.
Q1: What is reduced pressure?
A: Reduced pressure is the ratio of the actual pressure of the fluid to its critical pressure.
Q2: What is reduced molar volume?
A: Reduced molar volume is computed from the ideal gas law at the substance's critical pressure and temperature per mole.
Q3: Why is there a 0.26 constant in the formula?
A: This is a parameter in the Redlich-Kwong equation that has been determined empirically for best fit with real gas behavior.
Q4: What are typical values for reduced properties?
A: Reduced properties are typically between 0 and 1, but can exceed 1 in some cases.
Q5: How accurate is this calculation?
A: The Redlich-Kwong equation provides good estimates for many non-polar gases, but may be less accurate for polar substances.