Which oxide formation according to the Elling | vedclass

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(C) In an Ellingham diagram,a sudden change in the slope of the $\Delta G^{\circ}$ vs $T$ plot indicates a phase change (melting or boiling) of the me

Vedclass · Accepted Answer

$Al_{2}O_{3}$

Vedclass · Answer

(C) In an Ellingham diagram,a sudden change in the slope of the $\Delta G^{\circ}$ vs $T$ plot indicates a phase change (melting or boiling) of the metal or the oxide.Looking at the provided Ellingham diagram,the line corresponding to the formation of $Al_{2}O_{3}$ (represented by the reaction $\frac{4}{3} Al + O_{2} \rightarrow \frac{2}{3} Al_{2}O_{3}$) shows a distinct change in slope at a specific temperature,which corresponds to the melting point of aluminum.Therefore,the correct option is $C$.

Which oxide formation according to the Ellingham diagram shows a graph with a sudden change in slope?

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