Results 261 to 270 of about 35,050 (341)

Standard Enthalpy of Formation, Thermal Behavior, and Specific Heat Capacity of 2HNIW·HMX Co-crystals

Journal of Chemical and Engineering Data, 2019
2HNIW·HMX co-crystals are crystals composed of HNIW (2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexazisowurtzitane) and HMX (1,3,5,7-tetranitro-1,3,5,7-tetrazocane), and the HNIW molecule and HMX molecule are combined with noncovalent bonds in a lattice at a ...
Shi-jie Zhang, Jiaoqiang Zhang, Kaichang Kou, Qian Jia, Yunlong Xu, Ning Liu, R. Hu   +6 more
semanticscholar   +1 more source

Standard Enthalpy of Kesterite (Cu2ZnSnS4) Formation

Geochemistry International, 2019
Calorimetrically determined enthalpy of kesterite (Cu2ZnSnS4) formation from simple sulfides 2CuS + ZnS + SnS → Cu2ZnSnS4 was utilized to calculate the standard enthalpy of formation of Cu2ZnSnS4 (from elements at a pressure of 105 Pa): $${{\Delta }_{f}}H_{{298.5}}^{0}$$
T. A. Stolyarova, E. G. Osadchii, A. V. Baranov   +2 more
openaire   +1 more source

On the Prediction of Standard Enthalpy of Formation of C2-C4 Oxygenated Species.

Journal of Physical Chemistry A, 2019
In this study, to determine an efficient and accurate method for predicting standard enthalpy of formation (∆f Ho) of oxygenated species, we calculated ∆f Ho for several typical C2-C4 oxygenated species using atomization and isodesmic reactions in ...
Yage Gao, X. You
semanticscholar   +1 more source

The standard enthalpy of formation of Cs2RuO4

The Journal of Chemical Thermodynamics, 1990
Abstract The preparation of Cs 2 RuO 4 (s) has been described and its standard molar enthalpy of formation has been derived from its enthalpy of solution in 1.0 mol·dm −3 NaOH in water, in combination with auxiliary values. The value Δ f H m o (298.15 K) = −(964.6 ± 5.3) kJ·mol −1 has been obtained.
E.H.P Cordfunke, R.J.M Konings, W Ouweltjes, P Van Vlaanderen   +3 more
openaire   +1 more source

Standard enthalpy of formation of NaxCoO2 system

Journal of Alloys and Compounds, 2012
Abstract Layered sodium cobalt oxide (NaxCoO2) materials have attracted lot of attention in recent times because of their large thermoelectric power. Information on thermodynamic properties is necessary to predict the stability of these compounds. The present study deals with determination of enthalpy of formation of sodium-cobalt oxides [NaxCoO2 (x =
S. Phapale, R. Mishra, P.K. Mishra
openaire   +1 more source

Standard molar enthalpies of formation of methylbenzophenones

Journal of Physical Organic Chemistry, 2006
AbstractThe standard (po = 0.1 MPa) molar enthalpies of formation of 2‐, 3‐, and 4‐methylbenzophenone were derived from the standard molar energies of combustion, in oxygen, at T = 298.15 K, measured by static bomb combustion calorimetry. The Calvet high temperature vacuum sublimation technique was used to measure the enthalpies of vaporization or ...
Manuel A. V. Ribeiro da Silva, Luísa M. P. F. Amaral, Filipa C. R. Guedes, José R. B. Gomes   +3 more
openaire   +1 more source

Prediction of Standard Enthalpies of Formation

1986
A number of methods for relating the standard enthalpy of formation of a compound in its ideal-gaseous state to its molecular structure are considered in detail by Cox and Pilcher [70COX/PIL]. The most generally applicable parametric schemes are the ‘Benson’, ‘Laidler’ and ‘Allen’ procedures; Cox and Pilcher show that these three methods are ...
J. B. Pedley, R. D. Naylor, S. P. Kirby
openaire   +1 more source

The standard enthalpy of formation of tetramethoxydiboron

The Journal of Chemical Thermodynamics, 1972
Abstract Using an isoperibol solution calorimeter the enthalpy change on the oxidation of tetramethoxydiboron with aqueous hydrogen peroxide to boric acid and methanol has been determined. Hence ΔH f o {(CH 3 O) 4 B 2 , 1, 298.15 K} = −(279.3 ± 0.8) kcal th mol −1 .
A Finch, P.J Gardner, A.F Webb
openaire   +1 more source

Standard enthalpy of formation of La2CoO4(cr)

Russian Journal of Physical Chemistry, 2006
The enthalpies of reactions of La2CoO4(cr) and CoCl2(cr) with hydrochloric acid were measured with an isothermal-jacket calorimeter. The results obtained and the available literature data were used to calculate the standard enthalpy of formation of La2CoO4(cr) at 298.15 K, Δf H o = −2179 ± 7 kJ/mol.
S. N. Solov’ev, K. A. Minasyan, A. A. Korunov   +2 more
openaire   +1 more source

Standard enthalpy of formation of LaCoO3(cr)

Russian Journal of Physical Chemistry, 2006
An isothermal-jacket calorimeter was used to measure the enthalpies of the reactions of LaCoO3(cr), LaCl3(cr), and CoCl2(cr) with a 2m hydrochloric acid solution. Based on these values and the published data, the standard enthalpy of formation of LaCoO3(cr) at 298.15 K was calculated (Δf H 0 = −1232 ± 6 kJ/mol).
S. N. Solov’ev, A. Ya. Dupal, K. I. Shatalov   +2 more
openaire   +1 more source