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May 1, 2011

Non-ideal Gas Calculations Using Analytical Residuals

A refresher on simplified calculations of thermodynamic changes of real gases

Subin Hada and Shafik E. Sadek Chemical and Biomolecular Engineering University of South Alabama

The introduction of “residual functions” (defined as the difference between a property of the real gas and that property for an ideal gas held at the same temperature and pressure) simplifies the calculation of thermodynamic function changes, such as the enthalpy or the entropy, when the conditions of a gas are changed....

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