The density model for estimation of thermodynamic parameters of reactions at high temperatures and pressures

Details The density model for estimation of thermodynamic parameters of reactions at high temperatures and pressures The density model for estimation of thermodynamic parameters of reactions at high temperatures and pressures

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991gecoa..55.1769a&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 55, Issue 7, pp.1769-1779

Physics

12

Scientific paper

Equations are presented for the calculation of the equilibrium constant and standard state thermodynamic properties at high temperatures and pressures of reactions involving both aqueous species and minerals, given a knowledge of the equilibrium constant and the standard enthalpy and heat capacity of the reactions at reference conditions. The equations are based on a model variation of the heat capacity of reaction which uses reference state values and solvent properties only, notably the temperature derivative of the coefficient of thermal expansion of water.

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