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Peng–Robinson parameter a is an empirical parameter characteristic to equation obtained from Peng–Robinson model of real gas. Check FAQs
aPR=0.45724([R]2)Tc2Pc
aPR - Peng–Robinson Parameter a?Tc - Critical Temperature?Pc - Critical Pressure?[R] - Universal gas constant?

Peng Robinson Parameter a, of Real Gas given Critical Parameters Example

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Here is how the Peng Robinson Parameter a, of Real Gas given Critical Parameters equation looks like with Values.

Here is how the Peng Robinson Parameter a, of Real Gas given Critical Parameters equation looks like with Units.

Here is how the Peng Robinson Parameter a, of Real Gas given Critical Parameters equation looks like.

60696.6405Edit=0.45724(8.31452)647Edit2218Edit
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Peng Robinson Parameter a, of Real Gas given Critical Parameters Solution

Follow our step by step solution on how to calculate Peng Robinson Parameter a, of Real Gas given Critical Parameters?

FIRST Step Consider the formula
aPR=0.45724([R]2)Tc2Pc
Next Step Substitute values of Variables
aPR=0.45724([R]2)647K2218Pa
Next Step Substitute values of Constants
aPR=0.45724(8.31452)647K2218Pa
Next Step Prepare to Evaluate
aPR=0.45724(8.31452)6472218
Next Step Evaluate
aPR=60696.6404965009
LAST Step Rounding Answer
aPR=60696.6405

Peng Robinson Parameter a, of Real Gas given Critical Parameters Formula Elements

Variables
Constants
Peng–Robinson Parameter a
Peng–Robinson parameter a is an empirical parameter characteristic to equation obtained from Peng–Robinson model of real gas.
Symbol: aPR
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Critical Temperature
Critical Temperature is the highest temperature at which the substance can exist as a liquid. At this phase boundaries vanish, and the substance can exist both as a liquid and vapor.
Symbol: Tc
Measurement: TemperatureUnit: K
Note: Value should be greater than 0.
Critical Pressure
Critical Pressure is the minimum pressure required to liquify a substance at the critical temperature.
Symbol: Pc
Measurement: PressureUnit: Pa
Note: Value should be greater than 0.
Universal gas constant
Universal gas constant is a fundamental physical constant that appears in the ideal gas law, relating the pressure, volume, and temperature of an ideal gas.
Symbol: [R]
Value: 8.31446261815324

Other Formulas to find Peng–Robinson Parameter a

​Go Peng Robinson parameter a, of Real Gas given Reduced and Actual Parameters
aPR=0.45724([R]2)(TTr)2pPr
​Go Peng Robinson Parameter a, using Peng Robinson Equation
aPR=(([R]TVm-bPR)-p)(Vm2)+(2bPRVm)-(bPR2)α
​Go Peng Robinson Parameter a, using Peng Robinson Equation given Reduced and Critical Parameters
aPR=(([R](TcTr)(Vm,rVm,c)-bPR)-(PrPc))((Vm,rVm,c)2)+(2bPR(Vm,rVm,c))-(bPR2)α

Other formulas in Peng Robinson Parameter category

​Go Peng Robinson Parameter b of Real Gas given Reduced and Actual Parameters
bPR=0.07780[R]TTrpPr
​Go Peng Robinson Parameter b of Real Gas given Critical Parameters
bpara=0.07780[R]TcPc

How to Evaluate Peng Robinson Parameter a, of Real Gas given Critical Parameters?

Peng Robinson Parameter a, of Real Gas given Critical Parameters evaluator uses Peng–Robinson Parameter a = 0.45724*([R]^2)*(Critical Temperature^2)/Critical Pressure to evaluate the Peng–Robinson Parameter a, The Peng Robinson Parameter a, of Real Gas given Critical Parameters formula is defined as an empirical parameter characteristic to equation obtained from Peng–Robinson model of real gas. Peng–Robinson Parameter a is denoted by aPR symbol.

How to evaluate Peng Robinson Parameter a, of Real Gas given Critical Parameters using this online evaluator? To use this online evaluator for Peng Robinson Parameter a, of Real Gas given Critical Parameters, enter Critical Temperature (Tc) & Critical Pressure (Pc) and hit the calculate button.

FAQs on Peng Robinson Parameter a, of Real Gas given Critical Parameters

What is the formula to find Peng Robinson Parameter a, of Real Gas given Critical Parameters?
The formula of Peng Robinson Parameter a, of Real Gas given Critical Parameters is expressed as Peng–Robinson Parameter a = 0.45724*([R]^2)*(Critical Temperature^2)/Critical Pressure. Here is an example- 60696.64 = 0.45724*([R]^2)*(647^2)/218.
How to calculate Peng Robinson Parameter a, of Real Gas given Critical Parameters?
With Critical Temperature (Tc) & Critical Pressure (Pc) we can find Peng Robinson Parameter a, of Real Gas given Critical Parameters using the formula - Peng–Robinson Parameter a = 0.45724*([R]^2)*(Critical Temperature^2)/Critical Pressure. This formula also uses Universal gas constant .
What are the other ways to Calculate Peng–Robinson Parameter a?
Here are the different ways to Calculate Peng–Robinson Parameter a-
  • Peng–Robinson Parameter a=0.45724*([R]^2)*((Temperature/Reduced Temperature)^2)/(Pressure/Reduced Pressure)OpenImg
  • Peng–Robinson Parameter a=((([R]*Temperature)/(Molar Volume-Peng–Robinson Parameter b))-Pressure)*((Molar Volume^2)+(2*Peng–Robinson Parameter b*Molar Volume)-(Peng–Robinson Parameter b^2))/α-functionOpenImg
  • Peng–Robinson Parameter a=((([R]*(Critical Temperature*Reduced Temperature))/((Reduced Molar Volume*Critical Molar Volume)-Peng–Robinson Parameter b))-(Reduced Pressure*Critical Pressure))*(((Reduced Molar Volume*Critical Molar Volume)^2)+(2*Peng–Robinson Parameter b*(Reduced Molar Volume*Critical Molar Volume))-(Peng–Robinson Parameter b^2))/α-functionOpenImg
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