How many moles of gaseous oxygen at one atmos | vedclass

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(D) In an Ellingham diagram,the standard free energy change $(\Delta G^{\circ})$ is plotted against temperature for the oxidation of elements. The rea

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(D) In an Ellingham diagram,the standard free energy change $(\Delta G^{\circ})$ is plotted against temperature for the oxidation of elements. The reactions are normalized such that they involve exactly $1 	ext{ mole}$ of gaseous oxygen $(O_2)$ at $1 	ext{ atm}$ pressure. For example,the reaction for the formation of magnesium oxide is written as $2Mg(s) + O_2(g) ightarrow 2MgO(s)$,and for aluminum oxide,it is $\frac{4}{3}Al(s) + O_2(g) ightarrow \frac{2}{3}Al_2O_3(s)$. Thus,$1 	ext{ mole}$ of $O_2$ is used.

How many moles of gaseous oxygen at one atmosphere are considered for the reaction with an element to plot a graph in an Ellingham diagram?

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