Critical Pressure of Real Gas using Reduced Wohl Equation given Actual and Reduced Parameters Solution

STEP 0: Pre-Calculation Summary
Formula Used
Critical Pressure for Peng Robinson Model = Pressure of Gas/(((15*Reduced Temperature)/(4*(Reduced Molar Volume for P-R Method-(1/4))))-(6/(Reduced Temperature*Reduced Molar Volume for P-R Method*(Reduced Molar Volume for P-R Method-(1/4))))+(4/((Reduced Temperature^2)*(Reduced Molar Volume for P-R Method^3))))
P,c = Prg/(((15*Tr)/(4*(V'r-(1/4))))-(6/(Tr*V'r*(V'r-(1/4))))+(4/((Tr^2)*(V'r^3))))
This formula uses 4 Variables
Variables Used
Critical Pressure for Peng Robinson Model - (Measured in Pascal) - Critical Pressure for Peng Robinson Model is the minimum pressure required to liquify a substance at the critical temperature.
Pressure of Gas - (Measured in Pascal) - Pressure of Gas is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.
Reduced Temperature - Reduced Temperature is the ratio of the actual temperature of the fluid to its critical temperature. It is dimensionless.
Reduced Molar Volume for P-R Method - Reduced Molar Volume for P-R Method of a fluid is computed from the ideal gas law at the substance's critical pressure and temperature per mole.
STEP 1: Convert Input(s) to Base Unit
Pressure of Gas: 10132 Pascal --> 10132 Pascal No Conversion Required
Reduced Temperature: 1.46 --> No Conversion Required
Reduced Molar Volume for P-R Method: 246.78 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
P,c = Prg/(((15*Tr)/(4*(V'r-(1/4))))-(6/(Tr*V'r*(V'r-(1/4))))+(4/((Tr^2)*(V'r^3)))) --> 10132/(((15*1.46)/(4*(246.78-(1/4))))-(6/(1.46*246.78*(246.78-(1/4))))+(4/((1.46^2)*(246.78^3))))
Evaluating ... ...
P,c = 457616.16158262
STEP 3: Convert Result to Output's Unit
457616.16158262 Pascal --> No Conversion Required
FINAL ANSWER
457616.16158262 457616.2 Pascal <-- Critical Pressure for Peng Robinson Model
(Calculation completed in 00.020 seconds)

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Wohl Model of Real Gas Calculators

Critical Pressure of Real Gas using Wohl Equation given Wohl Parameter c
​ LaTeX ​ Go Critical Pressure for Peng Robinson Model = Wohl Parameter c/(4*(Critical Temperature of Real Gas^2)*(Critical Molar Volume for Peng Robinson Model^3))
Critical Pressure of Real Gas using Wohl Equation given Wohl Parameter a
​ LaTeX ​ Go Critical Pressure for Peng Robinson Model = Wohl Parameter a/(6*Critical Temperature of Real Gas*(Critical Molar Volume for Peng Robinson Model^2))
Critical Pressure of Wohl's Real Gas using other Critical Parameters
​ LaTeX ​ Go Critical Pressure for Peng Robinson Model = (4*[R]*Critical Temperature of Real Gas)/(15*Critical Molar Volume for Peng Robinson Model)
Critical Pressure of Real Gas using Wohl Equation given Wohl Parameter b
​ LaTeX ​ Go Critical Pressure for Peng Robinson Model = ([R]*Critical Temperature of Real Gas)/(15*Wohl Parameter b)

Critical Pressure of Real Gas using Reduced Wohl Equation given Actual and Reduced Parameters Formula

​LaTeX ​Go
Critical Pressure for Peng Robinson Model = Pressure of Gas/(((15*Reduced Temperature)/(4*(Reduced Molar Volume for P-R Method-(1/4))))-(6/(Reduced Temperature*Reduced Molar Volume for P-R Method*(Reduced Molar Volume for P-R Method-(1/4))))+(4/((Reduced Temperature^2)*(Reduced Molar Volume for P-R Method^3))))
P,c = Prg/(((15*Tr)/(4*(V'r-(1/4))))-(6/(Tr*V'r*(V'r-(1/4))))+(4/((Tr^2)*(V'r^3))))

What are Real Gases?

Real gases are non ideal gases whose molecules occupy space and have interactions; consequently, they do not adhere to the ideal gas law. To understand the behavior of real gases, the following must be taken into account:
- compressibility effects;
- variable specific heat capacity;
- van der Waals forces;
- non-equilibrium thermodynamic effects;
- issues with molecular dissociation and elementary reactions with variable composition.

How to Calculate Critical Pressure of Real Gas using Reduced Wohl Equation given Actual and Reduced Parameters?

Critical Pressure of Real Gas using Reduced Wohl Equation given Actual and Reduced Parameters calculator uses Critical Pressure for Peng Robinson Model = Pressure of Gas/(((15*Reduced Temperature)/(4*(Reduced Molar Volume for P-R Method-(1/4))))-(6/(Reduced Temperature*Reduced Molar Volume for P-R Method*(Reduced Molar Volume for P-R Method-(1/4))))+(4/((Reduced Temperature^2)*(Reduced Molar Volume for P-R Method^3)))) to calculate the Critical Pressure for Peng Robinson Model, The Critical Pressure of Real Gas using Reduced Wohl Equation given Actual and Reduced Parameters formula is defined as the minimum pressure required to liquefy a substance at the critical temperature. Critical Pressure for Peng Robinson Model is denoted by P,c symbol.

How to calculate Critical Pressure of Real Gas using Reduced Wohl Equation given Actual and Reduced Parameters using this online calculator? To use this online calculator for Critical Pressure of Real Gas using Reduced Wohl Equation given Actual and Reduced Parameters, enter Pressure of Gas (Prg), Reduced Temperature (Tr) & Reduced Molar Volume for P-R Method (V'r) and hit the calculate button. Here is how the Critical Pressure of Real Gas using Reduced Wohl Equation given Actual and Reduced Parameters calculation can be explained with given input values -> 17513.12 = 10132/(((15*1.46)/(4*(246.78-(1/4))))-(6/(1.46*246.78*(246.78-(1/4))))+(4/((1.46^2)*(246.78^3)))).

FAQ

What is Critical Pressure of Real Gas using Reduced Wohl Equation given Actual and Reduced Parameters?
The Critical Pressure of Real Gas using Reduced Wohl Equation given Actual and Reduced Parameters formula is defined as the minimum pressure required to liquefy a substance at the critical temperature and is represented as P,c = Prg/(((15*Tr)/(4*(V'r-(1/4))))-(6/(Tr*V'r*(V'r-(1/4))))+(4/((Tr^2)*(V'r^3)))) or Critical Pressure for Peng Robinson Model = Pressure of Gas/(((15*Reduced Temperature)/(4*(Reduced Molar Volume for P-R Method-(1/4))))-(6/(Reduced Temperature*Reduced Molar Volume for P-R Method*(Reduced Molar Volume for P-R Method-(1/4))))+(4/((Reduced Temperature^2)*(Reduced Molar Volume for P-R Method^3)))). Pressure of Gas is the force applied perpendicular to the surface of an object per unit area over which that force is distributed, Reduced Temperature is the ratio of the actual temperature of the fluid to its critical temperature. It is dimensionless & Reduced Molar Volume for P-R Method of a fluid is computed from the ideal gas law at the substance's critical pressure and temperature per mole.
How to calculate Critical Pressure of Real Gas using Reduced Wohl Equation given Actual and Reduced Parameters?
The Critical Pressure of Real Gas using Reduced Wohl Equation given Actual and Reduced Parameters formula is defined as the minimum pressure required to liquefy a substance at the critical temperature is calculated using Critical Pressure for Peng Robinson Model = Pressure of Gas/(((15*Reduced Temperature)/(4*(Reduced Molar Volume for P-R Method-(1/4))))-(6/(Reduced Temperature*Reduced Molar Volume for P-R Method*(Reduced Molar Volume for P-R Method-(1/4))))+(4/((Reduced Temperature^2)*(Reduced Molar Volume for P-R Method^3)))). To calculate Critical Pressure of Real Gas using Reduced Wohl Equation given Actual and Reduced Parameters, you need Pressure of Gas (Prg), Reduced Temperature (Tr) & Reduced Molar Volume for P-R Method (V'r). With our tool, you need to enter the respective value for Pressure of Gas, Reduced Temperature & Reduced Molar Volume for P-R Method and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Critical Pressure for Peng Robinson Model?
In this formula, Critical Pressure for Peng Robinson Model uses Pressure of Gas, Reduced Temperature & Reduced Molar Volume for P-R Method. We can use 3 other way(s) to calculate the same, which is/are as follows -
  • Critical Pressure for Peng Robinson Model = Wohl Parameter a/(6*Critical Temperature of Real Gas*(Critical Molar Volume for Peng Robinson Model^2))
  • Critical Pressure for Peng Robinson Model = Wohl Parameter c/(4*(Critical Temperature of Real Gas^2)*(Critical Molar Volume for Peng Robinson Model^3))
  • Critical Pressure for Peng Robinson Model = ([R]*Critical Temperature of Real Gas)/(15*Wohl Parameter b)
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