Results 241 to 250 of about 164,402 (291)

Enthalpy of formation of nickel chloride

The Journal of Chemical Thermodynamics, 1984
Abstract Subjecting high-purity nickel metal (mass fraction of impurities −5 ) to chlorination in a calorimetric bomb with a microfurnace for sample heating made it possible to determine the standard molar change of internal energy at 298.15 K for the reaction: Ni(cub.) + Cl 2 (g) = NiCl 2 (hexagon.). The standard molar enthalpy of formation of NiCl
E.G. Lavut, B.I. Timofeyev, V.M. Yuldasheva, G.L. Galchenko   +3 more
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Enthalpy of formation of dysprosium sesquioxide

The Journal of Chemical Thermodynamics, 1971
The value for the enthalpy of formation of dysprosium sesquioxide has been confirmed by two sets of independent measurements involving the use of an oxygen bomb calorimeter and a solution calorimeter. The value obtained from the former was Δ H f o ( Dy 2 O 3 , 298.15 K ) = − ( 445.3 ± 1.0 ) kcal mol − 1 , and ...
Elmer J. Huber, George C. Fitzgibbon, Charles E. Holley   +2 more
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Enthalpy of formation of vanadium dichloride

The Journal of Chemical Thermodynamics, 1989
Abstract Subjecting metallic vanadium and its dichloride to chlorination in a calorimetric bomb with a microfurnace for sample heating made it possible to determine the standard molar change of energy for the reaction: V(cr)+Cl 2 (g) = VCl 2 (cr) as the difference of energies for the reactions: V(cr)+Cl 2 (g) = VCl
E.G. Lavut, B.I. Timofeyev, V.M. Yuldasheva, N. Raupov   +3 more
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Enthalpies of formation of silanes

Journal of Organometallic Chemistry, 1979
Abstract Benson's electrostatic model for calculating enthalpies of formation has been applied to the methylsilanes and some disilanes, conforming recent conclusions from electron-impact measurements that these silanes essentially follow bond additivity rules, with very small interaction corrections.
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Enthalpy of formation of platinum hexafluoride

The Journal of Chemical Thermodynamics, 1986
Abstract Knudsen-cell mass spectrometry was used for the investigation of the gas-phase equilibrium: PtF 4 + F 2 = PtF 6 , generated within an effusion cell by heating a (Pt + TbF 4 ) mixture. By use of the third law the following quantities at T = 298.15 K have been determined: Δ r H m o = −(152 ± 12) kJ·mol −1 ; Δ f H m o (PtF 6 , g)
M.V Korobov, V.V Nikulin, N.S Chilingarov, L.N Sidorov   +3 more
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Standard enthalpy of formation of hexamethyldisilane

J. Chem. Soc., Faraday Trans., 1991
The standard (p°= 0.1 MPa) enthalpy of formation at 298.15 K of liquid hexamethyldisilane was determined by measuring the enthalpy of its reaction with bromine to produce trimethylsilicon bromide. The required ΔfH°m[(CH3)3SiBr, I]/kJ mol–1=–330.4 ± 2.7 was determined from its enthalpy of hydrolysis in aqueous hydrobromic acid.
Geoffrey Pilcher, M. Luisa P. Leitão, Yang Meng-Yan, Robin Walsh   +3 more
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Enthalpy of formation of 4-hydroxypyridine

The Journal of Chemical Thermodynamics, 1992
In this note, we report the re-determination of the enthalpy of combustion of 4-hydroxypyridine in Manchester and of its enthalpy of sublimation in Porto.
M.A.V. Ribeiro Da Silva, M. Agostinha R. Matos, Yang Meng-Yan, G. Pilcher   +3 more
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The enthalpy of formation of NiAl

Journal of Materials Science, 2005
NiAl and NiAl based ternary metallic systems have attracted much attention in recent years for potential use as high temperature structural materials [1–6]. Alloy development of such systems requires a thorough knowledge of the phase equilibria and thermodynamics of the systems. Using high temperature calorimeters [7–9], the enthalpies of formation for
Rongxiang Hu, Philip Nash
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The enthalpy of formation of tetracyanomethane

The Journal of Chemical Thermodynamics, 1973
Tetracyanomethane has been burned in a rotating-bomb combustion calorimeter. The standard enthalpy of combustion was Δ H o c (C 5 N 4 , c) = −(616.43 ± 0.4) kcal th mol −1 , which yields a standard enthalpy of formation Δ H o f (C 5 N 4 , c) = −(146.18 ± 0.43) kcal th mol −1 .
D.S. Barnes, C.T. Mortimer, E. Mayer
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Enthalpies of formation of RNi5 compounds

Inorganica Chimica Acta, 1984
Abstract The RNi5 compounds (with R = La, Ce, Pr, Sm, Y) crystallize in the hexagonal CaCu5 type structure. This close packed stacking is characterized by a cell parameter directly related to the R and Ni atomic radii, , and by the c parameter which depends almost entirely on the Ni atomic radius, c = The a lattice parameter variation inside ...
C. Colinet, A. Pasturel
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