How do you read Ellingham diagram?

Answer 1

An Ellingham diagram illustrates the temperature dependence of the Gibbs free energy change for various reactions, primarily oxidation and reduction processes. Each line on the diagram represents a specific reaction, with its position indicating the stability of the oxide or compound at different temperatures. The lower a line is on the diagram, the more stable the corresponding oxide is at that temperature. By comparing the positions of different lines, one can determine the feasibility of reducing a metal oxide using another metal or reactant at various temperatures.