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Question

Ellingham diagram represents:

A
Change of ΔG with temperature
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B
Change of ΔH with temperature
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C
Change of ΔG with pressure
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D
Change of (ΔGTΔS) with temperature
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Solution

The correct option is A Change of ΔG with temperature
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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