The Spinodal for a Van Der Waals Fluid

Liley, P. E.

doi:10.7227/ijmee.30.2.2

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Fig 2 Van Der Waals With Maxwell's Construction For Saturat1

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2006

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“…1 See for example many web entries under this term and the paper by Piley [2]. takes approximately 15 seconds on a PC.…”

Section: Fig 2 Van Der Waals With Maxwell's Construction For Saturatmentioning

confidence: 99%

Enthalpy Phase Change Predictions from Van Der Waals Equation

Lewins

2006

International Journal of Mechanical Engineering Education

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It is pointed out that a P,v,T relation, or equation of state, predicting a phase change has calorimetric data embedded in it, such as the latent heat or enthalpy change at the phase transition. This is illustrated by solving van der Waals equation over a range of sub-critical temperatures, employing Maxwell's construction for the saturation pressure and deriving the data from Clausius—Clapeyron. The results allow a comparison with real data. For example, water substance data are shown to be only modestly represented by a van der Waals model. Nevertheless, the procedure is applicable to more elaborate P,v,T relations for real substances.

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“…1 See for example many web entries under this term and the paper by Piley [2]. takes approximately 15 seconds on a PC.…”

Section: Fig 2 Van Der Waals With Maxwell's Construction For Saturatmentioning

confidence: 99%