An Ellingham diagram provides information about :
Option: 1 The conditions of pH and potential under which a species is thermodynamically stable
Option: 2 The temperature dependence of the standard Gibbs energies of formation of some metal oxides.
Option: 3 The pressure dependence of the standard electrode potentials of the extraction of metals.
Option: 4 The kinetics of the reduction process.
The temperature dependence of the standard Gibbs energies of formation of some metal oxides.
An Ellingham diagram plots ΔG° (standard Gibbs free energy change) vs temperature for the formation of metal oxides. It helps predict the feasibility of reducing metal oxides at different temperatures.