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Дата изменения: Unknown Дата индексирования: Thu Feb 27 22:42:53 2014 Кодировка: |
A.S. Monayenkova, A.A. Popova, V.V. Kuzmenko, J. Karpinski, K. Conder
J.Chem.Thermod. (in print)
The molar enthalpy of reaction of the Y2Ba4Cu7O14.916 high-temperature superconductor with 1.07 N HCl has been determined by the solution calorimetry. From that value the standard molar enthalpy of formation of the Y2Ba4Cu7O14.916 at 298.15 K has been found: DfH0m (Y2Ba4Cu7O14.916, cr, 298.15 K) = ( -5446.0 +6) kJ—mol-1