Activities of oxygen and lead in Pb-Ag O solutions


Autoria(s): Jacob, KT; Jeffes, JHE
Data(s)

01/07/1971

Resumo

The reversible e.m.f. of galvanic cells: stainlesssteel,Ir,Pb+PbO|CaO+ZrO2|Ag+Pb+PbO,Ir,stainlesssteel,I and Pt,Ni+NiO|CaO+ZrO2|O(Pb+Ag),Cermet,Pt,II incorporating solid oxide electrolytes were measured as a function of alloy composition. In lead-rich alloys, the temperature dependence of the e.m.f. of cell I was also investigated. Since the solubility of oxygen in the alloy is small, the relative partial molar properties of lead in the binary Ag + Pb system can be calculated from the e.m.f. of this cell. The Gibbs free energies obtained in this study are combined with selected calorimetric data to provide a complete thermodynamic discription of liquid Ag + Pb Alloys. The activity coefficient of oxygen in the whole range of Ag + Pb alloys at 1273 K have been obtained from the e.m.f. of cell II; and these are found to deviate positively from Alcock and Richardson's quasichemical equation when the average co-ordination number of all the atoms is assigned a value of 2.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/42453/1/005._Pb-Ag-O._JCT._1971.pdf

Jacob, KT and Jeffes, JHE (1971) Activities of oxygen and lead in Pb-Ag O solutions. In: The Journal of Chemical Thermodynamics, 3 (4). pp. 433-443.

Publicador

Elsevier Science

Relação

http://dx.doi.org/10.1016/S0021-9614(71)80026-5

http://eprints.iisc.ernet.in/42453/

Palavras-Chave #Materials Engineering (formerly Metallurgy)
Tipo

Journal Article

PeerReviewed