Ellingham Diagrams

IMPORTANT

Ellingham Diagrams: Overview

This Topic covers sub-topics such as Ellingham Diagram, Limitations of Ellingham Diagram and, Applications of Ellingham Diagram

Important Questions on Ellingham Diagrams

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IMPORTANT

Given below are two statements :

Statement I : According to the Ellingham diagram, any metal oxide with higher ΔG° is more stable than the one with lower ΔG°.

Statement II : The metal involved in the formation of oxide placed lower in the Ellingham diagram can reduce the oxide of a metal placed higher in the diagram.

In the light of the above statements, choose the most appropriate answer from the options given below

MEDIUM
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Given below are two statements.
Statement I: The choice of reducing agents for metals extraction can be made by using the Ellingham diagram, a plot of ΔG vs temperature.
Statement II: The value of ΔS increases from left to right in the Ellingham diagram.

In the light of the above statements, choose the most appropriate answer from the options given below:

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The statement that is INCORRECT about Ellingham diagram is

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In the Ellingham diagram for the solid metals A and B, gaseous oxides BO2 and AO are:

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Below point 'A', FeO can _____.
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Which of the following metals cannot be obtained by reduction of its metal oxide by aluminium?

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Ellingham diagram represents change of

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Ellingham diagram is a graphical representation of :

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Which one of the following statements is not correct?

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Considering Ellingham diagram, which of the following metals can be used to reduce alumina?

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ΔGf° vs T plot in the Ellingham diagram sloper downwards for the reaction :-

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In Ellingham diagram, the slope of curve of the formation of metal oxide :

HARD
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Total number of plots in which slope is not correctly represented.

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HARD
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Explain the reason due to which Ellingham diagram does not explain the kinetics of the reduction process.

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Explain limitations of Ellingham diagram based on the kinetics of the reaction.

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What are the limitations of Ellingham's diagram.

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Considering Ellingham diagram, which of the following metals can be used to reduce alumina?

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Carbon cannot be used in the reduction of Al2O3 because:

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To make the following reduction process spontaneous, temperature should be:

ZnO+CZn+CO

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For a reaction 4 Ms+nO2g2M2Ons

The free energy change is plotted as a function of temperature. The temperature below which the oxide is stable could be inferred from the plot as the point at which :