Abstract
The capability of the MSA–NRTL model to describe heat effects for binary aqueous electrolyte and nonelectrolyte solutions, with a relatively reduced number of parameters, is examined. The thermodynamic properties described include the osmotic coefficient, ϕ , the apparent relative molar enthalpy, Φ L , and the apparent molar heat capacity, Φ C P . The MSA–NRTL model consists of the mean spherical approximation (MSA) for the long-range electrostatic contribution to the Gibbs energy (for ionic solutions) and a local composition model, the non-random two-liquid (NRTL) model for the short-range contribution.
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