Results 251 to 260 of about 166,305,928 (302)
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The enthalpy of formation of benzylamine
The Journal of Chemical Thermodynamics, 1977Abstract The enthalpy of combustion of liquid benzylamine has been measured using a static combustion calorimeter and the enthalpy of formation: ΔH f o (C 7 H 9 N, 1, 298.15 K) = (8.18 ± 0.41) kcal th mol −1 has been derived. The enthalpy of formation of the gas: ΔH f o (C 7 H 9 N, g, 298.15 K) = (20.98 ± 0.65) kcal th mol −1 has been ...
A.S. Carson, P.G. Laye, M. Yürekli̇
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The Journal of Chemical Physics, 1972
Measurements have been made of [NH], [NH3], and [OH] as a function of distance from the reaction zone of a flat NH3/O2/N2 flame at atmospheric pressure. The function [NH] [H2O]2/[NH3] [OH]2 is shown to behave like the equilibrium constant for the reaction NH3+2OH→ NH+2H2O, but to be about a factor of 10 smaller than the value calculated from the JANAF ...
W. E. Kaskan, Melvin P. Nadler
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Measurements have been made of [NH], [NH3], and [OH] as a function of distance from the reaction zone of a flat NH3/O2/N2 flame at atmospheric pressure. The function [NH] [H2O]2/[NH3] [OH]2 is shown to behave like the equilibrium constant for the reaction NH3+2OH→ NH+2H2O, but to be about a factor of 10 smaller than the value calculated from the JANAF ...
W. E. Kaskan, Melvin P. Nadler
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The enthalpy of formation of adamantane
The Journal of Chemical Thermodynamics, 1971Adamantane has been burnt in a static bomb combustion calorimeter. The standard enthalpy of combustion was ΔHoc = -(1442.01 ± 0.78) kcal mol−1, which yields a standard enthalpy of formation ΔHof(C10H16,c) = -(45.02 ± 0.79) kcal mol−1.
R.S. Butler +3 more
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The enthalpy of formation of ketene
The Journal of Chemical Thermodynamics, 1971The enthalpy of reaction of ketene gas with aqueous sodium hydroxide was measured in an adiabatic solution calorimeter. For the reaction CH2CO(g) + NaOH(aq,500H2O) = CH3CO2Na(aq,NaOH soln), ΔH(298 K) = −(208.2 ± 1.6) kJ mol−1 = −(49.75 ± 0.38) kcal mol−1.
R.L. Nuttall, A.H. Laufer, M.V. Kilday
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Journal of Physics and Chemistry of Solids, 1997
Abstract The standard molar enthalpy of formation of C 70 in the crystalline state at 298.15 K has been determined as 2577.8 ± 16.2 kj mol −1 by microcombustion calorimetry.Δ f H m o (C 70 , g ) at 298.15 K was also derived, using literature data for the enthalpy of sublimation, vapour pressure, solid state heat capacity and solid state entropy ...
Hermínio P. Diogo +3 more
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Abstract The standard molar enthalpy of formation of C 70 in the crystalline state at 298.15 K has been determined as 2577.8 ± 16.2 kj mol −1 by microcombustion calorimetry.Δ f H m o (C 70 , g ) at 298.15 K was also derived, using literature data for the enthalpy of sublimation, vapour pressure, solid state heat capacity and solid state entropy ...
Hermínio P. Diogo +3 more
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The enthalpy of formation of RuO2
Thermochimica Acta, 1988Abstract The Gibbs energy of formation of RuO 2 (s) has been measured from 962 to 1070 K by the e.m.f. technique using ZrO 2 ( + CaO) as the solid electrolyte. A “Third-Law” evaluation of the experimental results gives for the enthalpy of formation of RuO 2 (s) the value − (314.15 ± 0.02) kJ mol −1 . Previous values from the literature are discussed.
E.H.P. Cordfunke, R.J.M. Konings
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The enthalpy of formation of phosgene
The Journal of Chemical Thermodynamics, 1972The standard enthalpy of formation of gaseous phosgene has been determined by a calorimetric study of the alkaline hydrolysis reaction to be Δ H f ° ( C O C l 2 , g , 2 9 8 . 1 5 K ) = - ( 5 2 . 6 1 ± 0 . 2 3 ) k c a l t h m o l - 1 .
J.V. Davies, H.O. Pritchard
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Enthalpy of formation of tetramethylgermane
Journal of the Chemical Society, Faraday Transactions 2, 1986The enthalpy of formation of highly purified tetramethylgermane has been determined by combustion in oxygen at 25 atm pressure in a bomb calorimeter, followed by full quantitative analysis of the products. The enthalpy of formation at 25 °C for Ge(CH3)4 liquid is –131.1 ± 8.3 kJ mol–1 and for the gas –102.6 ± 8.3 kJ mol–1.
Leonard H. Long, Carl I. Pulford
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The enthalpy of formation of diamantane
The Journal of Chemical Thermodynamics, 1971Diamantane (“congressane”) has been burnt in a static bomb combustion calorimeter. The standard enthalpy of combustion was ΔH° = −(1932.31±0.40) kcal mol−1 which yields a standard enthalpy of formation ΔH°f(C14H20,c) = −(67.55±0.42) kcal mol−1. The molecule would appear to have a similar strain energy to adamantane.
A.S. Carson +4 more
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Enthalpy of formation and enthalpy of mixing of calcium and cadmium hydroxyapatites
Thermochimica Acta, 1994Abstract Calcium—cadmium hydroxyapatite solid solutions with the general formula Ca 10- x Cd x (PO 4 ) 6 (OH) 2 were prepared by a double decomposition method. The samples were characterized by X-ray diffraction, infrared spectroscopy and elemental analysis.
A.Ben Cherifa +3 more
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