Reduced Pressure Formula:
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Definition: Reduced Pressure is the ratio of the actual pressure of the fluid to its critical pressure. It is a dimensionless quantity used in thermodynamics.
Purpose: This calculator helps determine the reduced pressure of a real gas using the Wohl equation with actual and critical parameters.
The calculator uses the Wohl equation:
Where:
Details: Reduced properties are essential for applying the principle of corresponding states and for predicting the behavior of real gases.
Tips: Enter the temperature of the real gas, critical temperature, molar volume, and critical molar volume. All values must be positive numbers.
Q1: What is the significance of reduced properties?
A: Reduced properties allow comparison of different gases at similar conditions and help predict gas behavior using corresponding states principle.
Q2: How do I find critical parameters for a gas?
A: Critical parameters are typically found in thermodynamic tables or chemical engineering reference materials.
Q3: What is the range of reduced pressure values?
A: Reduced pressure typically ranges from 0 to 1, where 1 represents the critical pressure.
Q4: Can this calculator be used for any gas?
A: Yes, as long as you have the correct critical parameters for the specific gas.
Q5: What are typical units for molar volume?
A: Molar volume is typically expressed in m³/mol or L/mol (1 m³ = 1000 L).