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Standard enthalpies of formation of uranium compounds XIV. BaU2O7 and Ba2U2O7

โœ Scribed by E.H.P Cordfunke; W Ouweltjes

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
216 KB
Volume
20
Category
Article
ISSN
0021-9614

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The standard molar enthalpies of formati
The standard molar enthalpies of formation of ฮฒ-La2Si2O7and ฮฒ-Ce2Si2O7
โœ M. Bolech; F.J.J.G. Janssen; A.S. Booij; E.H.P. Cordfunke ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 174 KB

The standard molar enthalpies of solution of cerium and lanthanum silicates (b-Ce2Si2O7 and b-La2Si2O7) in (6.20 molโ€ขdm -3 HCl + 0.147 molโ€ขdm -3 HF) (aq) were measured. From these values the standard molar enthalpies of formation have been deduced: DfHยฐm(Ce2Si2O7, cr, b, 298.15 K) = -(3807.6 2 4.5)

Enthalpy of formation of Y2Ba4Cu7O14.916
Enthalpy of formation of Y2Ba4Cu7O14.916
โœ A.S. Monayenkova; A.A. Popova; V.V. Kuzmenko; J. Karpinski; K. Conder ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 120 KB

standard molar enthalpy of formation of Y Ba Cu O at T s 298.15 K has 2 4 7 14.916 0 ลฝ . been determined by solution calorimetry to be: โŒฌ H Y Ba Cu O , cr, 298.15 K s f m 2 4 7 14.916 . y1 ลฝ . y 5465.7 " 7 kJ mol . During the experiment the molar enthalpies of reaction of the Y Ba Cu O high-temperat