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Critical Pressure of Real Gas using Reduced Redlich Kwong Equation Formula

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Critical Pressure is the minimum pressure required to liquify a substance at the critical temperature. Check FAQs

P c = \frac{p}{(\frac{3 \cdot T r}{V m,r - 0.26}) - (\frac{1}{0.26 \cdot \sqrt{T g} \cdot V m,r \cdot (V m,r + 0.26)})}

P_c - Critical Pressure?p - Pressure?T_r - Reduced Temperature?V_m,r - Reduced Molar Volume?T_g - Temperature of Gas?

Critical Pressure of Real Gas using Reduced Redlich Kwong Equation Example

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Here is how the Critical Pressure of Real Gas using Reduced Redlich Kwong Equation equation looks like with Values.

Here is how the Critical Pressure of Real Gas using Reduced Redlich Kwong Equation equation looks like with Units.

Here is how the Critical Pressure of Real Gas using Reduced Redlich Kwong Equation equation looks like.

292.0785 = \frac{800}{(\frac{3 \cdot 10}{11.2 - 0.26}) - (\frac{1}{0.26 \cdot \sqrt{85.5} \cdot 11.2 \cdot (11.2 + 0.26)})}

292.0785Pa = \frac{800Pa}{(\frac{3 \cdot 10}{11.2 - 0.26}) - (\frac{1}{0.26 \cdot \sqrt{85.5K} \cdot 11.2 \cdot (11.2 + 0.26)})}

292.0785 = \frac{800}{(\frac{3 \cdot 10}{11.2 - 0.26}) - (\frac{1}{0.26 \cdot \sqrt{85.5} \cdot 11.2 \cdot (11.2 + 0.26)})}

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Critical Pressure of Real Gas using Reduced Redlich Kwong Equation Solution

Follow our step by step solution on how to calculate Critical Pressure of Real Gas using Reduced Redlich Kwong Equation?

FIRST Step Consider the formula

P c = \frac{p}{(\frac{3 \cdot T r}{V m,r - 0.26}) - (\frac{1}{0.26 \cdot \sqrt{T g} \cdot V m,r \cdot (V m,r + 0.26)})}

Next Step Substitute values of Variables

∴

P c = \frac{800Pa}{(\frac{3 \cdot 10}{11.2 - 0.26}) - (\frac{1}{0.26 \cdot \sqrt{85.5K} \cdot 11.2 \cdot (11.2 + 0.26)})}

Next Step Prepare to Evaluate

∴

P c = \frac{800}{(\frac{3 \cdot 10}{11.2 - 0.26}) - (\frac{1}{0.26 \cdot \sqrt{85.5} \cdot 11.2 \cdot (11.2 + 0.26)})}

Next Step Evaluate

∴

P c = 292.078506176971Pa

LAST Step Rounding Answer

∴

P c = 292.0785Pa

Critical Pressure of Real Gas using Reduced Redlich Kwong Equation Formula Elements

Variables

Functions

Critical Pressure

Critical Pressure is the minimum pressure required to liquify a substance at the critical temperature.

Symbol: P_c

Measurement: PressureUnit: Pa

Note: Value should be greater than 0.

Formulas to find Critical Pressure

Pressure

Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.

Symbol: p

Measurement: PressureUnit: Pa

Note: Value can be positive or negative.

Formulas to find Pressure

Reduced Temperature

Reduced Temperature is the ratio of the actual temperature of the fluid to its critical temperature. It is dimensionless.

Symbol: T_r

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Reduced Temperature

Reduced Molar Volume

Reduced Molar Volume of a fluid is computed from the ideal gas law at the substance's critical pressure and temperature per mole.

Symbol: V_m,r

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Reduced Molar Volume

Temperature of Gas

Temperature of Gas is the degree or intensity of heat present in a substance or object.

Symbol: T_g

Measurement: TemperatureUnit: K

Note: Value can be positive or negative.

Formulas to find Temperature of Gas

sqrt

A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number.

Syntax: sqrt(Number)

Other formulas in Redlich Kwong Model of Real Gas category

Go Actual Pressure given Peng Robinson Parameter a, and other Reduced and Critical Parameters

P PRP = P r \cdot (0.45724 \cdot ({[R]}^{2}) \cdot \frac{{T c}^{2}}{a PR})

Go Actual Temperature given Peng Robinson parameter b, other reduced and critical parameters

T PRP = T r \cdot (\frac{b PR \cdot P c}{0.07780 \cdot [R]})

Go Temperature of Real Gas using Peng Robinson Equation

T CE = (p + ((\frac{a PR \cdot α}{({V m}^{2}) + (2 \cdot b PR \cdot V m) - ({b PR}^{2})}))) \cdot (\frac{V m - b PR}{[R]})

Go Critical Pressure given Peng Robinson Parameter b and other Actual and Reduced Parameters

Pc PRP = 0.07780 \cdot [R] \cdot \frac{\frac{T g}{T r}}{b PR}

How to Evaluate Critical Pressure of Real Gas using Reduced Redlich Kwong Equation?

Critical Pressure of Real Gas using Reduced Redlich Kwong Equation evaluator uses Critical Pressure = Pressure/(((3*Reduced Temperature)/(Reduced Molar Volume-0.26))-(1/(0.26*sqrt(Temperature of Gas)*Reduced Molar Volume*(Reduced Molar Volume+0.26)))) to evaluate the Critical Pressure, The Critical Pressure of Real Gas using Reduced Redlich Kwong Equation formula is defined as the minimum pressure required to liquify a substance at the critical temperature. Critical Pressure is denoted by P_c symbol.

How to evaluate Critical Pressure of Real Gas using Reduced Redlich Kwong Equation using this online evaluator? To use this online evaluator for Critical Pressure of Real Gas using Reduced Redlich Kwong Equation, enter Pressure (p), Reduced Temperature (T_r), Reduced Molar Volume (V_m,r) & Temperature of Gas (T_g) and hit the calculate button.

FAQs on Critical Pressure of Real Gas using Reduced Redlich Kwong Equation

What is the formula to find Critical Pressure of Real Gas using Reduced Redlich Kwong Equation?

The formula of Critical Pressure of Real Gas using Reduced Redlich Kwong Equation is expressed as Critical Pressure = Pressure/(((3*Reduced Temperature)/(Reduced Molar Volume-0.26))-(1/(0.26*sqrt(Temperature of Gas)*Reduced Molar Volume*(Reduced Molar Volume+0.26)))). Here is an example- 292.0795 = 800/(((3*10)/(11.2-0.26))-(1/(0.26*sqrt(85.5)*11.2*(11.2+0.26)))).

How to calculate Critical Pressure of Real Gas using Reduced Redlich Kwong Equation?

With Pressure (p), Reduced Temperature (T_r), Reduced Molar Volume (V_m,r) & Temperature of Gas (T_g) we can find Critical Pressure of Real Gas using Reduced Redlich Kwong Equation using the formula - Critical Pressure = Pressure/(((3*Reduced Temperature)/(Reduced Molar Volume-0.26))-(1/(0.26*sqrt(Temperature of Gas)*Reduced Molar Volume*(Reduced Molar Volume+0.26)))). This formula also uses Square Root (sqrt) function(s).

Can the Critical Pressure of Real Gas using Reduced Redlich Kwong Equation be negative?

No, the Critical Pressure of Real Gas using Reduced Redlich Kwong Equation, measured in Pressure cannot be negative.

Which unit is used to measure Critical Pressure of Real Gas using Reduced Redlich Kwong Equation?

Critical Pressure of Real Gas using Reduced Redlich Kwong Equation is usually measured using the Pascal[Pa] for Pressure. Kilopascal[Pa], Bar[Pa], Pound Per Square Inch[Pa] are the few other units in which Critical Pressure of Real Gas using Reduced Redlich Kwong Equation can be measured.

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Critical Pressure of Real Gas using Reduced Redlich Kwong Equation Formula

Critical Pressure of Real Gas using Reduced Redlich Kwong Equation Example

Critical Pressure of Real Gas using Reduced Redlich Kwong Equation Solution

Critical Pressure of Real Gas using Reduced Redlich Kwong Equation Formula Elements

Other formulas in Redlich Kwong Model of Real Gas category

How to Evaluate Critical Pressure of Real Gas using Reduced Redlich Kwong Equation?

FAQs on Critical Pressure of Real Gas using Reduced Redlich Kwong Equation

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