Pd16S7: enthalpy of formation
3 accepted literature formation-enthalpy value(s) (experimental 2, DFT 1).
Systems: Pd–S
Literature values
| Value | Phase as printed | T (K) | Class | Method | System | Source | Location | Quote |
|---|---|---|---|---|---|---|---|---|
| -36.601 per mol-atom | Pd16S7 | 298.15 | experimental | Pd–S | [1] Hu 2010 cites Taylor 1985 doi | Table 2, p. 2, row 10 report | ||
| -25.221 per mol-atom ± 1.574 | Pd16S7 | 298.15 | experimental | calorimetry | Pd–S | [1] Hu 2010 cites Zubkov 1998 doi | Table 2, p. 2, row 9 report | |
| -29.5 per mol-atom | Pd16S7 | 0 | DFT | first principles (PBEsol) | Pd–S | [1] Hu 2010 | Table 2, p. 2, row 11 report |
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.
| Value | Unit | Printed | Reading | Method (class, basis) | Composition | Scatter | Conversion | Effective |
|---|---|---|---|---|---|---|---|---|
| -36.601 | per mol-atom | 5.000e-4 | unit 'per mol-atom' not convertible to kJ/mol-atom | unit 'per mol-atom' not convertible to kJ/mol-atom | ||||
| -25.221 | per mol-atom | 1.574 | 5.000e-4 | unit 'per mol-atom' not convertible to kJ/mol-atom | 1.574 | |||
| -29.5 | per mol-atom | 0.05 | unit 'per mol-atom' not convertible to kJ/mol-atom | unit 'per mol-atom' not convertible to kJ/mol-atom |
Sources
- Rongxiang Hu, Michael C. Gao, Ömer N. Doğan, Paul King, Michael Widom, Thermodynamic modeling of the Pd–S system supported by first-principles calculations, Calphad 34, 324-331 (2010). doi:10.1016/j.calphad.2010.07.002