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00016a053 . 28. Glasstone , S 1947 Thermodynamics for chemists Van Nostrand New York . 29

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system of amino acids–metal ions [ 1 – 4 ]. Consequently, a fundamental thermodynamics for complexes based on l -α-amino acids is of paramount importance. The essential trace element Zn is a structural constituent in numerous proteins, including

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( dashed line ), B ( solid line ), C ( dash dotted line ), D ( gray filled solid line ) Table 2 Result of the TPD fitting procedure—obtained thermodynamics data

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The thermodynamics of extraction equilibria

III. The uranyl chloride—hydrochloric acid—Di-2-ethylhexyl phosphoric acid—Toluene system

Journal of Radioanalytical and Nuclear Chemistry
Authors: A. Ruvarac, Z. Maksimović, and R. Halaši

Abstract  

A simple graphical method for determination of thermodynamic equilibrium constants, developed for ion-exchange and solvent extraction processes, was successfully applied to a liquid exchangersystem. Close values of the thermodynamic equilibrium constants for the system uranyl chloride—hydrochloric acid—di-2-ethylhyxyl phosphoric acid—toluene (K=7.8±0.8) were obtained when the ionic strength of the aqueous phase was varied and the concentration of di-2-ethylhexyl phosphoric acid in the organic phase was kept constant, and vice versa.

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Cryogenic heat-capacity determinations provide a useful tool for the determination of the energetic spectrum of condensed phases and also reveal information on their discrete electronic level structures as well. We have been interested in applying these techniques to actinide elements and have in recent months been working up the techniques to unravel the corresponding data for the lanthanide compounds—where opposite trends in cationic masses and molar volumes provide an opportunity to test theories useful for the resolution of excess heat capacity from lattice contributions.

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, ((3)) which represents the exergy, that is the “work potential” or “free energy” of E , according to the Second Law of Thermodynamics, and ((4)) which is a measure of the unevenness or “disorder” of the publication portfolio. Indicators E , X

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Abstract  

A new adsorption isotherm equation based on the extension of the potential theory of adsorption on microporous fractal solids and corresponding thermodynamic functions were formulated and applied for description of the experimental data of adsorption on a microporous carbon. The comparison of the obtained results with the original Dubinin-Astakhov equation is presented. In this paper the dependence of thermodynamic functions (the differential molar enthalpy of adsorption ΔH and the differential molar entropy of adsorption ΔS) on the fractal dimension D are discussed, as well.

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