Formula Used:
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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: It helps in comparing the thermodynamic properties of different gases at similar conditions.
The calculator uses the formula:
Where:
Explanation: The actual temperature is divided by a term involving Wohl parameter c, critical pressure, and critical molar volume.
Details: Reduced temperature is crucial in thermodynamic calculations and helps in determining the state of a real gas using the principle of corresponding states.
Tips: Enter the temperature of real gas in Kelvin, Wohl parameter c, critical pressure in Pascals, and critical molar volume in m³/mol. All values must be > 0.
Q1: What is Wohl parameter c?
A: Wohl parameter c is an empirical parameter characteristic to equation obtained from Wohl model of real gas.
Q2: How do I find critical pressure and volume?
A: These are typically tabulated properties for each substance or can be determined experimentally.
Q3: What does reduced temperature tell us?
A: It indicates how far the temperature is from the critical temperature of the substance.
Q4: Can this be used for all gases?
A: The Wohl equation is particularly useful for polar and non-ideal gases.
Q5: What's the range of reduced temperature?
A: Typically between 0 and 2, where 1 represents the critical temperature.