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Critical Pressure in Real Gas Formulas

Critical Pressure is the minimum pressure required to liquify a substance at the critical temperature. And is denoted by Pc. Critical Pressure is usually measured using the Pascal for Pressure. Note that the value of Critical Pressure is always positive. Typically, the value of Critical Pressure is greater than 0.

Formulas to find Critical Pressure in Real Gas

fxCritical Pressure given Peng Robinson Parameter a, and other Actual and Reduced Parameters​Go
fxCritical Pressure of Real Gas using Peng Robinson Equation given Peng Robinson Parameter a​Go
fxCritical Pressure of Real Gas using Peng Robinson Equation given Peng Robinson Parameter b​Go
fxCritical Pressure of Real Gas using Peng Robinson Equation given Reduced and Actual Parameters​Go
fxCritical Pressure using Peng Robinson Equation given Reduced and Critical Parameters​Go

Real Gas formulas that make use of Critical Pressure

fxTemperature of Real Gas using Peng Robinson Equation given Reduced and Critical Parameters​Go
fxPeng Robinson Alpha-Function using Peng Robinson Equation given Reduced and Critical Parameters​Go
fxActual Temperature given Peng Robinson Parameter a, and other Reduced and Critical Parameters​Go
fxActual Temperature given Peng Robinson parameter b, other reduced and critical parameters​Go
fxReduced Temperature given Peng Robinson Parameter a, and other Actual and Critical Parameters​Go
fxReduced Temperature given Peng Robinson Parameter b, other Actual and Critical Parameters​Go
fxReduced Temperature using Peng Robinson Equation given Reduced and Critical Parameters​Go
fxCritical Temperature of Real Gas using Peng Robinson Equation given Peng Robinson Parameter a​Go
fxCritical Temperature of Real Gas using Peng Robinson Equation given Peng Robinson Parameter b​Go
fxCritical Temperature using Peng Robinson Equation given Reduced and Critical Parameters​Go
fxPeng Robinson Parameter a, of Real Gas given Critical Parameters​Go
fxPeng Robinson Parameter b of Real Gas given Critical Parameters​Go
fxPeng Robinson Parameter a, using Peng Robinson Equation given Reduced and Critical Parameters​Go
fxReduced Pressure using Peng Robinson Equation given Critical and Actual Parameters​Go

List of variables in Real Gas formulas

fx Temperature ​Go
fx Reduced Temperature ​Go
fx Peng–Robinson Parameter a ​Go
fx Critical Temperature ​Go
fx Peng–Robinson Parameter b ​Go
fx Molar Volume ​Go
fx α-function ​Go
fx Reduced Pressure ​Go
fx Reduced Molar Volume ​Go
fx Critical Molar Volume ​Go

FAQ

What is the Critical Pressure?
Critical Pressure is the minimum pressure required to liquify a substance at the critical temperature. Critical Pressure is usually measured using the Pascal for Pressure. Note that the value of Critical Pressure is always positive. Typically, the value of Critical Pressure is greater than 0.
Can the Critical Pressure be negative?
No, the Critical Pressure, measured in Pressure cannot be negative.
What unit is used to measure Critical Pressure?
Critical Pressure 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 can be measured.
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