Question:
Ellingham diagram represents a graph of
Ellingham diagram represents a graph of
Updated On: May 30, 2022
- $\Delta\, G\, Vs\, T$
- $\Delta \, G ^\circ \,Vs\, T$
- $\Delta S\, Vs\, P$
- $\Delta G\, Vs\, P$
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The Correct Option is B
Solution and Explanation
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 $\Delta G$ with temperature.
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What are Ores and Minerals?
Minerals are the naturally occurring, homogeneous inorganic solid substances. They are having a definite chemical composition and crystalline structure, hardness and color. For example, copper pyrite, calamine, etc.
Impurities in an ore are called gauge. The removal of a gauge from the ore is called concentration ore.
Several steps are involved in the extraction of pure metal from ores. Major steps are as follows –
- Concentration of the ore
- Isolation of the metal from its concentrated ore
- Purification of the metal