Journal of thermal analysis

, Volume 7, Issue 2, pp 309–316 | Cite as

A thermoanalytical investigation of the thermodynamic properties of tin telluride

  • Shamsuddin
  • S. Misra
Article
Received:

Abstract

The heats of formation and fusion of SnTe were determined in a differential thermal analysis calorimeter. Its free energy of formation was calculated by the analyses due to Wagner and Jordan using this heat of fusion and liquidus data. The experimentally determined value of the heat of formation and the calculated free energy of formation were combined to obtain the entropy of formation. The thermodynamic properties were interpreted in terms of the structure and bonding of the compound.

Keywords

Polymer Entropy Physical Chemistry Free Energy Inorganic Chemistry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Résumé

On a déterminé par analyse calorimétrique différentielle les chaleurs de formation et de fusion de SnTe. On a utilisé la méthode de Wagner et Jordan pour calculer l'énergie libre de formation à partir de la chaleur de fusion et des données relatives au liquide. On en a déduit l'entropie de la formation en combinant la valeur de la chaleur de formation obtenue par voie expérimentale et l'énergie libre de formation calculée. On a interprété les propriétés thermodynamiques du point de vue de la structure et des liaisons de ce composé.

Zusammenfassung

Die Bildungs- und Schmelzwärmen von SnTe wurden in einem Calorimeter zur Differentialthermoanalyse bestimmt. Die freie Energie der Bildung wurde mittels Analysen nach Wagner und Jordan unter Anwendung dieser Schmelzwärme und Flüssigkeitsdaten errechnet. Der auf dem Versuchswege bestimmte Wert der Bildungswärme und die errechnete freie Energie der Bildung wurden kombiniert, um die Bildungsentropie zu erhalten. Die thermodynamischen Eigenschaften wurden bezüglich der Struktur und Bindungen der Verbindung erörtert.

Резюме

Определена теплота о бразования и плавлен ия SnTe с помощью дифференци ального термоаналитическог о калориметра. Свобод ная энергия образования рассчит ана по методу Вагнера и Йо рдана на основании да нных о жидком состоянии и те плоте плавления. Сопоставлены величи ны теплоты образован ия, определенной экспер иментальным путем, и рассчитанной свободной энергии об разования с целью установления э нтропии образования. Термоди намические особенно сти интерпретированы на основании строения и связей соединений.

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Copyright information

© Wiley Heyden Ltd., Chichester and Akadémiai Kiadó, Budapest 1975

Authors and Affiliations

  • Shamsuddin
    • 1
  • S. Misra
    • 1
  1. 1.Department of Metallurgical Engineering, Institute of TechnologyBanaras Hindu UniversityVaranasiIndia

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