Ellingham diagram represents the change in
ΔG with temperature
ΔH with temperature
ΔG with pressure
ΔS with temperature
Ellingham diagram represents a graph between the change in free energy (ΔG) and temperature. An Ellingham diagram is a graph showing the temperature dependence of the stability for compounds. This analysis is used to evaluate the ease of reduction of metal oxides to metals.
This graph provides basis for considering the choice of reducing agent in reduction of oxides.
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