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JEE Main202125 Feb 2021Morning ShiftChemistryGeneral Principles and Processes of Isolation of MetalsActual

Ellingham diagram is a graphical representation of :

Options

  1. AΔG  vs  P
  2. BΔG - TΔS   vs   T
  3. CΔH   vs   T
  4. DΔG   vs   T

Correct answer

D. ΔG   vs   T

Step-by-step solution

Ellingham diagram is a graphical representation of ΔG vs T when metal heated with oxygen to form metal oxide. An Ellingham diagram is a graph showing the temperature dependence of the stability for compounds. This analysis is usually used to evaluate the ease of reduction of metal oxides and sulphides. Ellingham diagram represents change in free energy ΔG with temperature

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