Wolfram Function Repository
Instant-use add-on functions for the Wolfram Language
Function Repository Resource:
Calculate the constants associated with an equation of state
ResourceFunction["EquationOfStateConstants"]["name","eos"] gives the values of the constants associated with the equation of state "eos" for the chemical "name". | |
ResourceFunction["EquationOfStateConstants"][entity,"eos"] gives the values of the constants for the given entity. | |
ResourceFunction["EquationOfStateConstants"][assoc,"eos"] uses the association assoc to look up properties needed to compute the constants. |
"Berthelot" | Berthelot equation |
"Dieterici" | Dieterici equation |
"CarnahanStarling" | Carnahan-Starling equation |
"RedlichKwong" | Redlich-Kwong equation |
"VanDerWaals" | van der Waals equation |
"CriticalPressure" | critical pressure |
"CriticalTemperature" | critical temperature |
Get the van der Waals constants for argon:
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Compare with the result of ChemicalData:
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Use the van der Waals constants to compute the pressure of argon, given a molar volume of 1 L/mol at a temperature of 1800 °C:
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Compare with the result of using the ideal gas equation:
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Compare with the result of using ThermodynamicData:
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The Redlich–Kwong equation of state:
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Use the Redlich–Kwong equation to compute the molar volume of ethane at standard temperature and pressure:
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Compare with the result of using the van der Waals equation:
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Compute the constants for the Dieterici equation for Freon C-318 by supplying explicit values for the critical temperature and pressure:
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Use the constants to compute the pressure at -10 °C of C-318 with a molar volume of 500 mL/mol:
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Compute the Redlich–Kwong constants for a gas mixture that is 70% nitrogen and 30% oxygen by weight, using mixing rules for the constants:
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Compute the density of the mixture at standard temperature and pressure:
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Compute the mass of 10 L of the mixture:
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Use the resource function JobackEstimate to estimate physical properties of tetrafluoroethylene, the monomer of Teflon:
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Use these to compute the corresponding van der Waals constants:
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Compare with the constants calculated from its actual physical properties:
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