Abstract

Some cubic equations of state can eventually have unphysical solutions for the molar volume. The conditions for this phenomenon are discussed. The computational accuracy and computing time requirements of the analytical root finding method (Cardano's formula) are investigated. A new, faster iterative root finder for cubic polynomials is proposed.

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Calculation of densities from cubic equations of state - Deiters - 2004 - AIChE Journal - Wiley Online Library

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