Reduced Temperature of Real Gas given Wohl Parameter c and Actual and Critical Parameters Calculator

Formula Used:

\[ T_r = \frac{T_{rg}}{\sqrt{\frac{c}{4 \times P_c \times (V'_c)^3}}} \]

Temperature of Real Gas:

Wohl Parameter c:

Critical Pressure:

Critical Molar Volume:

m³/mol

Reduced Temperature:

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1. What is Reduced Temperature of Real Gas?

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.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ T_r = \frac{T_{rg}}{\sqrt{\frac{c}{4 \times P_c \times (V'_c)^3}}} \]

Where:

\( T_r \) — Reduced Temperature (dimensionless)
\( T_{rg} \) — Temperature of Real Gas (K)
\( c \) — Wohl parameter c
\( P_c \) — Critical Pressure (Pa)
\( V'_c \) — Critical Molar Volume (m³/mol)

Explanation: The actual temperature is divided by a term involving Wohl parameter c, critical pressure, and critical molar volume.

3. Importance of Reduced Temperature

Details: Reduced temperature is crucial in thermodynamic calculations and helps in determining the state of a real gas using the principle of corresponding states.

4. Using the Calculator

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.

5. Frequently Asked Questions (FAQ)

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.