... and constraints in applications of the Nernst distribution law to crystalline solutions. It is concluded that a strict accounting for the effects of crystal structure is required for a rigorous thermodynamic assessment of equilibria between coexisting, mutually-soluble crystalline solutions with different...

...N. B. Holst Abstract The Nernst distribution law, which is used by many authors in geology as the theoretical basis of geothermometry and trace-component distribution, is derived using excess functions. It is demonstrated that the free-energy term in the Nernst equation, as it is applied in many...

... element distributions in other marine mollusks, indicates that molluscan skeletal material is not precipitated at equilibrium with coexisting sea water. Calculations demonstrate that the partitioning of minor elements between carbonate and sea water does not follow the Nernst distribution law...

... values of Δμ 0 = −9 kJ/mol and W Sr-Ca law Cmcm = 10 kJ/mol for orthorhombic and Δμ 0 = −10 kJ/mol and W Sr-Ca law P 21 /m = 11 kJ/mol for monoclinic lawsonite. Calculated Nernst distribution coefficients for the studied 1 M (Ca,Sr)Cl 2 aqueous fluids are D Sr zo-af = 2.8 ± 0.7 for zoisite at 2 GPa/600...

... concentration ratios are interpreted as mineral-to-mineral hydrogen partition coefficients (i.e., Nernst's law) for a garnet-peridotite assemblage. It yields, based on mineral-specific infrared calibrations, D Opx/Ol = 5 ± 1, D Cpx/Ol = 10 ± 2, and D Cpx/Opx = 1.9 ± 0.4. While D Cpx/Opx is in agreement (within...

...John H. Jones The Nernst partition coefficient D, which is wt. % concentration of element i in one phase normalised to the weight concentration of i in another phase ( Nernst, 1891 ). Typically, the numerator of this quotient will be a solid phase (α) and the denominator will be a liquid...

... element), quotient (12) becomes very nearly equal to the ratio X fs / X hd , which forms one expression of the Nernst distribution law ( Nernst 1904 ). The orthopyroxene – Ca pyroxene exchange equilibrium can be represented by a distribution diagram in which X fs is plotted against X hd...

... diffusion coefficients are the same (in which case Fick's Law is recovered if no ionic strength gradients are present). The Nernst–Planck equation has now been implemented in a number of reactive transport codes, including FLOTRAN, CrunchFlow, MIN3P, and PHREEQc ( Steefel et al. 2015 ). It was used...

... decrease in volumetric water content (cell basis). This is consistent with the unique behavior of water distribution in porous tuff, as discussed above. Extending the application of the Nernst–Einstein equation to diffusion in unsaturated porous media requires several assumptions. We first must...

... (2.2) or its equivalent using wt. %, is known as the Nernst distribution law. Thus, a Roozeboom plot of the dilute species i (obeying Henry’s law) should define a line with constant slope and zero intercept. Figure 2.1c , which is reproduced from Kretz ( 1959 ), shows that the Nernst distribution...

... Fe oxides follows more closely the modified Nernst equation ( Kabai, 1973 ) (Figure 4b , Table 3 ) than the cube root law (Figure 4a ). Hence, the cube root law will not be discussed further in this publication. Figure 4. Dissolution curves for samples derived from sample E2 by magnetic...

...A. Revil ABSTRACT Electric polarization is described as the sum of charge accumulations (free charge density) and orientation of polar molecules such as those of bound and free water molecules (bound charge polarization). Charge accumulation in porous materials cannot be described with Ohm’s law...

... and dark gray are pore/solid mixtures and solids, respectively. C: Pore-width distribution obtained from a combination of bulk and microscopic characterization techniques. [Figure modified from Tournassat et al. (2016b) .] [email protected] ; [email protected] [email protected]...

..., the distribution of a trace element A (in this study, arsenic and lead) and a major element M (in our case, uranium) between the fluid and the precipitating solid phase can be described by Nernst’s law: \batchmode \documentclass[fleqn,10pt,legalpaper]{article} \usepackage{amssymb} \usepackage{amsfonts...

... bonded sodium cations, the dominant charge carriers, migrate into interstitial sites within the feldspar aluminosilicate framework. The Na diffusivity inferred from electrical conductivity of albite in this study using the Nernst-Einstein relation is consistent with that of previous studies on natural...

...Joshua Bautista-Anguiano; Carlos Torres-Verdín; Joachim Strobel ABSTRACT The quantitative interpretation of borehole spontaneous potential (SP) measurements via Nernst’s equation often relies on limiting assumptions such as shallow mud-filtrate invasion, negligible streaming potentials, and uniform...

... Nernst distribution 35, 49 Scott, Robert 46 GEOCHEMICAL PERSPECTIVES | J I B A M I T R A G A N G U LY 143 Seifert, Fritz 52, 135, 138 U Sharp, Zachary 89, 100, 138 Sikkim 58, 81, 89-91, 93, 131, 133 Urey, Harold 37, 38, 39, 51, 99, 139 Skinner, Brian 68, 138 solutions W ideal 32, 34, 40, 46, 71...

... distribution law: 9 X Zn - LDH / 1 - X Zn - LDH = D Zn + / MgOH + 12 χ Zn , aq = Zn + / Zn + + MgOH + and: where the Berthelot–Nernst distribution coefficient D is given by: 10 D...

...Christophe Tournassat; Carl I. Steefel (5) ∂ φ c i ∂ t = ∂ ∂ x ( D e , i ∂ c i ∂ x ) . The quantification of adsorption processes is commonly translated into distribution ratio values, Rd (L·kg −1 ): (7) R d i...