Topic
Standard molar entropy
About: Standard molar entropy is a research topic. Over the lifetime, 1586 publications have been published within this topic receiving 29886 citations.
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TL;DR: In this paper, the standard exchange current of the Mn/Mn aq 2+ electrode has been found to be J 0 = 7·1 × 10 6 T exp (−15100/ RT ) A/cm 2, showing a mean standard heat of activation of 15·1 Kcal.
4 citations
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TL;DR: In this paper, the possibility for tetra-, hexa-, octa-, and decanitrogen to exist was analyzed using the QCISD(T)/TZVP and G4 quantum chemical calculations.
Abstract: The possibility for tetra-, hexa-, octa-, and decanitrogen to exist was analyzed using the QCISD(T)/TZVP and G4 quantum chemical calculations. The results obtained suggest the existence of only four allotropes of nitrogen whose molecules contain from four to eight atoms, viz., rectangular and tetrahedral N4, open-book N6, and cubic N8. The bond lengths and bond angles were calculated for all compounds, as well as selected thermodynamic parameters (standard enthalpy of formation ΔfHo, standard entropy of formation So, standard Gibbs energy of formation ΔfGo) of the compounds in the gas phase. The enthalpies and entropies of the oxidation reactions of each compound by molecular oxygen were calculated using the results of quantum chemical computations. All the oxidation reactions are highly exothermic and practically irreversible; therefore, the title allotropes of nitrogen may appear to be promising combustible materials.
4 citations
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TL;DR: 3DNFs have good potential application in effective adsorption of metal ions with satisfactory results andThermodynamic analysis indicated that a high temperature is favored for the adsorbent material by 3D NFs.
4 citations
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TL;DR: In this article, the existence of ordering in liquid mercury-thallium alloys has been shown by accurate determinations of the partial molar entropy of thallium, SMTl.
Abstract: RECENT X-ray measurements on liquid mercury–thallium alloys have given some evidence for ordering at compositions corresponding approximately to the solid-state compound Hg5Tl2 1. These results, obtained at 17° C., some 3° C. above the melting point of Hg5Tl2, are unfortunately inconclusive due to the uncertainty introduced by the extensive corrections necessary in the analysis of diffraction data. In the present work, evidence for the existence of ordering has been obtained by accurate determinations of the partial molar entropy of thallium, SMTl.
4 citations
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TL;DR: It is observed that the extent of adsorption (Gamma2(1)) increases in two steps with the increase of biopolymer concentration (C2) in the bulk, and the values of the standard free energy change and enthalpy changes are calculated on the basis of the Gibbs equation.
4 citations