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Browsing ELibrary by Title
Now showing items 13079-13098 of 21768
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(1998)In 1988 Pabalan and Pitzer published in this journal two equations valid for various thermodynamic functions for Na2SO4(aq) at temperatures to 300°C. One was based on their measurements at 200 bars pressure, with other ...
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(2000)The limiting values of NaCl(aq) heat capacity, c0p, 2, at temperatures from 0 to - 25°C and volume, V02 , from 0 to - 15°C, were obtained by the mathematical processing of experimental determinations of heat capacity and ...
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(2002)The hitherto unknown low-temperature heat capacity of nickel chromite (NiCr2O4) was measured between 8 and 381 K using adiabatic calorimetry, and some thermochemical functions [CP(T), S(T), S°298, H(T)-H(0)] were derived ...
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(1989)Interest in the thermodynamic properties of gas hydrates is on the rise. A thorough knowledge of these properties would provide a basis for the effective use of these hydrates in various technologies, for finding new methods ...
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(2003)Metastable systems are created when the interface between the atmosphere (in which Patm = 1 bar) and water forms a spherical meniscus either concave toward the air (water filling capillaries, wherein Pwater < Patm) or ...
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(2000)Standard partial molal thermodynamic properties of surface species in a single-site 2pKA triple-layer model (TLM) for rutile in NaCl electrolyte, consistent with the SUPCRT92-98 data, were estimated at temperatures T = 0 ...
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(2000)Standard partial molal thermodynamic properties of surface species in a single-site 2pKA triple-layer model (TLM) for rutile in NaCl electrolyte, consistent with the SUPCRT92-98 data, were estimated at temperatures T = 0 ...
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(2001)The thermodynamic properties of natural stilbite and stellerite were determined by the methods of high-temperature Calvet calorimetry. The standard enthalpies of formation from oxides and elements are -232.0 ± 8.3 and -11 ...
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(2003)The standard thermodynamic properties and Helgeson-Kirkham-Flowers (HKF) parameters for Sb(OH)3(aq) have been estimated. For this purpose, the available solubility data for senarmontite, valentinite, stibnite, and native ...
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(2005)The low-temperature heat capacity of uvarovite (Ca3Cr2Si3O12) was measured between 2 and 400 K, and thermochernical functions were derived from the results. The measured heat-capacity curve shows a significant lambda-shaped ...
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THERMODYNAMIC STABILITY ANALYSIS OF THE CARBON BIOGEOCHEMICAL CYCLE IN AQUATIC SHALLOW ENVIRONMENTS (1996)We carry out the thermodynamic stability analysis of the carbon cycle in a lagoon. Our approach differs from linear stability analysis, and is based on the excess entropy production. The coupled biogeochemical processes ...
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(2004)The heat capacity (C0p298 ) and entropy (S0298) of elementary substances that occur in a solid, liquid, or gaseous state under standard conditions (T = 298 K and P = 1 atm) are the only thermodynamic properties of chemical ...
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(2002)High-temperature oxide-melt calorimetry and Rietveld refinement of powder X-ray diffraction patterns were used to investigate the energetics and structure of the hematite-corundum solid solution and ternary phase FeAlO3 ...
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(1995)Natural cummingtonite encompasses virtually the entire compositional range from Mg to Fe end-member. It occurs in several metamorphic rock types, but predominantly in amphibolites and metaironstones. Most examples were ...
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(1999)This paper deals with the process of the development of a viscoplastic envelope around a magma conduit and an accompanying hydrothermal system. It is estimated that the discharge of hot water at the surface (possibly as ...
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(1999)The thermodynamic properties of garnets in the system (Fe^2+, Mn^2+, Mg, Ca)3A12Si3O12 are reviewed. The thermodynamic properties of the three end-member garnets pyrope, almandine and grossular, including their volume, ...
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(2000)We have developed a cluster variation method (CVM) model based on cuboctahedral and octahedral basis clusters containing 13 and 6 atoms, respectively, and applied it to the analysis of the thermodynamic mixing properties ...
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(1997)We have experimentally determined the displacement of the equilibrium Grossular + 2 Kyanite + Quartz ↔ 3 Anorthite (GASP) as a function of garnet composition in the systems Mg-Ca-Mn, Fe-Mg-Ca and Fe-Mg-Ca-Mn at 1000°C. The ...
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(1989)Apparent molar heat capacities and volumes of aqueous solutions containing UO2(ClO4)2 in dilute (≈0.06 molal) HClO4 have been determined from 10 to 55°C. These results have been analyzed using Young's rule to obtain apparent ...
Now showing items 13079-13098 of 21768