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EMF measurements of solid electrolyte galvanic cells at temperatures r
anging within 1073-1273 K supplied more information about the thermody
namics of the reaction of LaFeO3 formation. Gibbs energy, enthalpy, an
d entropy of LaFeO3 formation, as well as equilibrium oxygen pressures
for the orthoferrite dissociation, were determined as functions of te
mperature. (C) 1997 Elsevier Science Ltd.