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Critical Pressure for Peng Robinson Model is the minimum pressure required to liquify a substance at the critical temperature. Check FAQs
P,c=a6(TrgTr)((V'mV'r)2)
P,c - Critical Pressure for Peng Robinson Model?a - Wohl Parameter a?Trg - Temperature of Real Gas?Tr - Reduced Temperature?V'm - Molar Volume of Real Gas?V'r - Reduced Molar Volume for P-R Method?

Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters Example

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Here is how the Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters equation looks like with Values.

Here is how the Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters equation looks like with Units.

Here is how the Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters equation looks like.

2.6E+7Edit=266Edit6(300Edit1.46Edit)((0.0224Edit246.78Edit)2)
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Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters Solution

Follow our step by step solution on how to calculate Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters?

FIRST Step Consider the formula
P,c=a6(TrgTr)((V'mV'r)2)
Next Step Substitute values of Variables
P,c=2666(300K1.46)((0.0224246.78)2)
Next Step Prepare to Evaluate
P,c=2666(3001.46)((0.0224246.78)2)
Next Step Evaluate
P,c=26187007.3694196Pa
LAST Step Rounding Answer
P,c=2.6E+7Pa

Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters Formula Elements

Variables
Critical Pressure for Peng Robinson Model
Critical Pressure for Peng Robinson Model 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.
Wohl Parameter a
Wohl parameter a is an empirical parameter characteristic to equation obtained from Wohl model of real gas.
Symbol: a
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Temperature of Real Gas
Temperature of Real Gas is the degree or intensity of heat present in a substance or object.
Symbol: Trg
Measurement: TemperatureUnit: K
Note: Value can be positive or negative.
Reduced Temperature
Reduced Temperature is the ratio of the actual temperature of the fluid to its critical temperature. It is dimensionless.
Symbol: Tr
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Molar Volume of Real Gas
Molar Volume of Real Gas or Molar gas volume is one mole of any gas at a specific temperature and pressure has a fixed volume.
Symbol: V'm
Measurement: VolumeUnit:
Note: Value can be positive or negative.
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.
Symbol: V'r
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.

Other Formulas to find Critical Pressure for Peng Robinson Model

​Go Critical Pressure of Real Gas using Wohl Equation given Wohl Parameter a
P,c=a6T'c(V'c2)
​Go Critical Pressure of Real Gas using Wohl Equation given Wohl Parameter c
P,c=c4(T'c2)(V'c3)
​Go Critical Pressure of Real Gas using Wohl Equation given Wohl Parameter b
P,c=[R]T'c15b
​Go Critical Pressure of Wohl's Real Gas using other Critical Parameters
P,c=4[R]T'c15V'c

Other formulas in Wohl Model of Real Gas category

​Go Reduced Pressure of Real Gas using Wohl Equation given Critical and Actual Parameters
Pr=([R]TrgV'm-b)-(aTrgV'm(V'm-b))+(c(Trg2)(V'm3))P,c
​Go Reduced Pressure of Real Gas using Wohl Equation given Reduced and Critical Parameters
Pr=([R](TrT'c)(V'rV'c)-b)-(a(TrT'c)(V'rV'c)((V'rV'c)-b))+(c((TrT'c)2)((V'rV'c)3))P,c
​Go Reduced Pressure of Real Gas given Wohl Parameter a, and Actual and Critical Parameters
Pr=Prga6T'c(V'c2)
​Go Reduced Pressure of Real Gas given Wohl Parameter c and Actual and Critical Parameters
Pr=Prgc4(T'c2)(V'c3)

How to Evaluate Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters?

Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters evaluator uses Critical Pressure for Peng Robinson Model = Wohl Parameter a/(6*(Temperature of Real Gas/Reduced Temperature)*((Molar Volume of Real Gas/Reduced Molar Volume for P-R Method)^2)) to evaluate the Critical Pressure for Peng Robinson Model, The Critical Pressure of Real Gas given Wohl Parameter a, and other 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 evaluate Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters using this online evaluator? To use this online evaluator for Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters, enter Wohl Parameter a (a), Temperature of Real Gas (Trg), Reduced Temperature (Tr), Molar Volume of Real Gas (V'm) & Reduced Molar Volume for P-R Method (V'r) and hit the calculate button.

FAQs on Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters

What is the formula to find Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters?
The formula of Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters is expressed as Critical Pressure for Peng Robinson Model = Wohl Parameter a/(6*(Temperature of Real Gas/Reduced Temperature)*((Molar Volume of Real Gas/Reduced Molar Volume for P-R Method)^2)). Here is an example- 9.2E+7 = 266/(6*(300/1.46)*((0.0224/246.78)^2)).
How to calculate Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters?
With Wohl Parameter a (a), Temperature of Real Gas (Trg), Reduced Temperature (Tr), Molar Volume of Real Gas (V'm) & Reduced Molar Volume for P-R Method (V'r) we can find Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters using the formula - Critical Pressure for Peng Robinson Model = Wohl Parameter a/(6*(Temperature of Real Gas/Reduced Temperature)*((Molar Volume of Real Gas/Reduced Molar Volume for P-R Method)^2)).
What are the other ways to Calculate Critical Pressure for Peng Robinson Model?
Here are the different ways to Calculate Critical Pressure for Peng Robinson Model-
  • Critical Pressure for Peng Robinson Model=Wohl Parameter a/(6*Critical Temperature of Real Gas*(Critical Molar Volume for Peng Robinson Model^2))OpenImg
  • Critical Pressure for Peng Robinson Model=Wohl Parameter c/(4*(Critical Temperature of Real Gas^2)*(Critical Molar Volume for Peng Robinson Model^3))OpenImg
  • Critical Pressure for Peng Robinson Model=([R]*Critical Temperature of Real Gas)/(15*Wohl Parameter b)OpenImg
Can the Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters be negative?
No, the Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters, measured in Pressure cannot be negative.
Which unit is used to measure Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters?
Critical Pressure of Real Gas given Wohl Parameter a, and other Actual and Reduced Parameters 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 given Wohl Parameter a, and other Actual and Reduced Parameters can be measured.
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