Gibbs free energy of formation of Bi2O3 from EMF cells with δ-Bi2O3 solid electrolyte

✍ Scribed by H.T. Cahen; M.J. Verkerk; G.H.J. Broers

• Publisher: Elsevier Science
• Year: 1978
• Tongue: English
• Weight: 412 KB
• Volume: 23
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(78)87011-x

✦ Synopsis

Abatraet

-Determination of thermodynamic data on the formation of Bi,O, was established by emf measurements as a function of temperature in the range MO-820°C on the system Metal, Bi(l)lBilOl 1 Ft, 0,. From the results using a tungsten electrode the following relation w18 found : AC" = -(134.7 f 1.2) + (64.0 + 1.2) x 10S3 T kcal mole-' (validity range : 940-1080 K). Standard thermodynamic data at 298 K were calculated. as AGo = -119.2 f 2.1 kcalmole-', AH" = -139.0 f 1.2kcalmole-'.