Journals / Gazi Üniversitesi Fen Bilimleri Enstitüsü Dergisi / 1998 / Cilt: 11 - Sayı: 3

Investigation of thermodynamics of molten tin-bismuth system by concentration cell

Sıvı kalay-bizmut sisteminin termodinamiğinin alaşım konsantrasyon hücresi yardımıyla araştırılması

Pages
617–628
Publication Date
2022-10-18
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Results were found to be in accord with the literature.

📌 3 Key Takeaways

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Objective & Hypothesis:Thermodynamic behaviour of tin in tin-bismuth binary system has been studied over the entire composition range using an emf (electromotive force) method.
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Key Findings & Data:Measurements were taken at temperatures between 300°C pd 450° $SnCl_2$-$KCI_M$-NaCI salt mixture was used as molten electrolyte. $Delta H_{Sn}$, $Delta S_{Sn}$, $Delta G_{Sn}$, $a_{Sn}$ and $gamma_{Sn}$ were calculated from the measured data.
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Conclusion & Impact:Results were found to be in accord with the literature.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Thermodynamic behaviour of tin in tin-bismuth binary system has been studied over the entire composition range using an emf (electromotive force) method. Measurements were taken at temperatures between 300°C pd 450° $SnCl_2$-$KCI_M$-NaCI salt mixture was used as molten electrolyte. $Delta H_{Sn}$, $Delta S_{Sn}$, $Delta G_{Sn}$, $a_{Sn}$ and $gamma_{Sn}$ were calculated from the measured data. In addition, $Delta H_{Bi}$, $Delta S_{Bi}$, $Delta G_{Bi}$, $a_{Bi}$ , $g_{Bi}$ $Delta H^M$, $Delta S^M$ and $Delta G^M$ were calculated using Gibbs Duhem equation. It was observed that Sn in Sn-Bi system behaves very close to ideal, but Sn shows slight positive deviation from ideality between $X_{sn}$= 0 and $X_{sn}$= 0.85 and slight negative deviation between $X_{sn}$= 0.85 and $X_{sn}$= 1. Results were found to be in accord with the literature.

Özet

Bu çalışmada, kalayın kalay-bizmut sistemindeki termodinamik davranışı tüm konsantrasyon aralığında emk (elektromotor kuvveti) metodu kullanılarak incelendi. Çalışma 300°C-450°C arasında yapıldı. Çalışmada $SnCl_2$-$KCI_M$-NaCI tuz karışımı sıvı elektrolit olarak kullanıldı. Alınan ölçümlerden $Delta H_{Sn}$, $Delta S_{Sn}$, $Delta G_{Sn}$, $a_{Sn}$ ve $gamma_{Sn}$ değerleri bulundu. Ayrıca $Delta H_{Bi}$, $Delta S_{Bi}$, $Delta G_{Bi}$, $a_{Bi}$ ve $g_{Bi}$ $Delta H^M$, $Delta S^M$ ve $Delta G^M$ değerleri Gibbs-Duhem eşitliği kullanılarak hesaplandı. Çalışma sonucunda kalayın Sn-Bi sisteminde ideale yakın bir davranış gösterdiği ancak $X_{sn}$ = 0 ile $X_{sn}$ = 0.85 arasında idealden hafifçe pozitif bir sapma, $X_{sn}$=0.85 ile $X_{sn}$=1 arasında ise idealden hafifçe bir negatif sapma gösterdiği görülmüştür. Elde edilen sonuçların genel olarak literatürle uyum içerisinde olduğu belirlenmiştir.

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Cite This Article

OKUYUCU, H., KARAKAYA, İ. (2022). Investigation of thermodynamics of molten tin-bismuth system by concentration cell. Gazi Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Cilt: 11 - Sayı: 3, 617–628. https://ajindex.com/articles/522621