Gd5Ge3: enthalpy of formation

1 accepted literature formation-enthalpy value(s) (experimental 1).

Systems: Gd–Ge

Literature values

Enthalpy of formation of Gd5Ge3 reported in the literature (1)
ValuePhase as printedT (K)ClassMethodSystemSourceLocationQuote
-82 unspecified ± 2.6Gd5Ge3298.15experimentaldirect-synthesis calorimetryGd–Ge[1] Chen 2008
cites Meschel 1995 doi		p. 2
report		Using direct-synthesis calorimetry, Meschel and Kleppa [27] determined the standard enthalpy of formation of Gd5 Ge3 to be -82.0 ± 2.6 kJ/mol-atoms at 1473 ± 2 K.

Uncertainty budget

Components kept separate, in the value's unit (literature SCHEMA.md, UNCERTAINTY_CALIBRATION.md): effective = max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter). The method floor is the robust between-study scatter of the method class in ORCHID (calibrated) or a documented prior; printed values and printed uncertainties are unchanged.

Uncertainty budget of the literature values of Gd5Ge3
ValueUnitPrintedReadingMethod (class, basis)CompositionScatterConversionEffective
-82unspecified2.60.05unit 'unspecified' not convertible to kJ/mol-atom2.6

Sources

  1. Hai-Lin Chen, Yong Du, Cui-Yun He, Thermodynamic modeling of the gadolinium–germanium system, Journal of Alloys and Compounds 462, 181-186 (2008). doi:10.1016/j.jallcom.2007.07.105