نتایج جستجو برای: dissolution enthalpy
تعداد نتایج: 27192 فیلتر نتایج به سال:
I discuss the possibility that the quark-gluon plasma at strong coupling admits a description in terms of a black hole in asymptotically anti-de Sitter space. Prepared for the Proceedings of Recent Developments in Gravity – NEB XIII, Thessaloniki, Greece, June 2008. Research supported in part by the US Department of Energy under grant DE-FG05-91ER40627. E-mail: [email protected]
Abstract Carbon capture and storage in underground formations might be considered as a relevant technology to curb anthropogenic climate gas emissions. However, carbon dioxide ( $${{\hbox {CO}}_{2}}$$ CO 2 ) injection can lead severe rock-fluid interactions depend...
Ti is a background impurity in SiC due to its presence the graphite parts of production furnace, and it has large impacts on electrical magnetic performance SiC. Herein, solid solubilities 3C- 6H-SiC were measured at SiC–TiSi2 thermodynamic equilibrium, values enthalpy entropy dissolution for estimated through analysis, which also confirmed using formation energy calculation defects. The soft X...
In this work the solubility of metastable α-form and stable β-form L-Glutamic acid in pure water different water/ethanol mixtures at high concentrations ethanol is measured by analytical gravimetric method. The experiments are carried out over a temperature ranging from 283 to 343 K. experimental results show that lower than regardless solvent studied (water or mixtures). also highlight both po...
Cholic acid, deoxycholic acid, chenodeoxycholic acid, and ursodeoxycholic acid were purified by a foam fractionation method. Using thermogravimetric analysis, the attached water molecule was found to be completely removed from solids of the latter three at 100°C, while cholic acid still had one water molecule of crystallization per two cholic acid molecules at that temperature. The acidity cons...
The U-Zr phase diagram has been the subject of many recent studies, particularly for development metallic fuels future fast reactors. so-called δ-UZr2 is part this renewed interest as it likely to be formed during irradiation U-Zr10wt% fuel. Although several structural there a single experimental determination its enthalpy formation by dissolution calorimetry. Most Calphad and DFT models rely o...
Mole fraction solubilities of tadalafil (3) in aqueous mixtures Transcutol® and PEG 400 at temperatures from 298.15 to 333.15 K were analysed following Hildebrand solubility parameters. Cosolvency models for representing various also provided correlation/prediction purposes. Apparent thermodynamic quantities dissolution processes calculated based on van’t Hoff Gibbs equations. Non-linear enthal...
Unpoisoned sartorius muscles of Rana temporaria were stimulated tetanically in isometric contractions lasting up to 20 s at 0 degrees C. The observed enthalpy (heat + work) production and the chemical changes in these contractions were measured, and a comparison was made between the observed enthalpy and the enthalpy that could be explained by the chemical changes. Like earlier workers, we foun...
Recent work has sought to extract the asymmetry energy at very low density from observables in heavyion collisions. The logic employed starts from the assumption that the fragment yields are determined by a minimization of the Helmholtz free energy. As volume is in reality unconstrained, nor can a single freeze-out volume be expected, the physical relevance of the Helmholtz free energy must be ...
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