Gibbs-Duhem equations aqueous systems

Equations 8 and 9 can be used with the Gibbs-Duhem equation to calculate pf,., the activity coefficient of water, for each of the binary systems. The Gibbs-Duhem equation for a binary aqueous electrolyte solution is written ... [Pg.727]

Develop a Gibbs-Duhem equation for strong electrolyte-water systems, and use this equation and the data in Ulustratidn 9.10-1 to compute the activity coefficient of water in aqueous hydrochloric acid solutions at 25°C. [Pg.484]

A critical examination of the large amount of data on the extraction of mineral acids from aqueous solutions by TBP has been made by Davis et al. (1966) and Hardy (1970). The activities of TBP in equilibrium with water, with aqueous nitric acid and with hydrochloric acid have been calculated by means of the Gibbs-Duhem equation and compared to the distribution data for the TBP-HNO3-H2O and TBP-H2O systems and the TBP-HCI-H2O and TBP-H2O systems. The activity of TBP decreases more sharply... [Pg.7]

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