Ellingham diagrams are plots of DeltaG(1...

Ellingham diagrams are plots of `DeltaG_(1)^(@)` Vs `T` for the formation of

Oxides

Halides

Sulphides

All of these

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The choice of reducing agent for metal oxide is decided by thermodynamic principles of metallurgy. Delta G must be negative. Ellingham diagram is a plot of Delta_(f)G^(0) vs T for the formation of oxides of various elements. All the plots slope upwards when temperature increases. Each plot is a straight line except when some change in phase takes place. A metal will reduce the oxide of other metals which lie above it in this diagram. At a temperature below 1623 K. Al cannot reduce

Ellingham diagram represents:

Ellingham diagram is used for ?

In Ellingham diagrams plots of Delta_(f)G (oxide formation) show positive slope except for the formation of CO(g) from coke. Why ?

In Ellingham diagrams plots of Delta G (oxide formation) show positive slopes except for the formation of CO(g) from coke. Why?

In Ellingham diagrams of Delta_(1)G oxide formation Vs T , which of the following graphs has negative slope ?

In Elingham diagrams of DeltaG de formation Vs T, which of the following graphs has negative slope?

The Ellingham diagram for a number of metallic sulphides is shown below. Formation of which of the sulphides is most spontaneous ?

An Ellingham diagram provides information about :

AAKASH INSTITUTE ENGLISH-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Objective type Questions (One option is correct)

Which of the following is used to reduce TiCl(4) to Ti ?
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At 1250 K 2FeO(s)to2Fe(s)+O(2)(g), DeltaG=+320kJmol^(-1) of O(2) 2...
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Ellingham diagrams are plots of DeltaG(1)^(@) Vs T for the formation o...
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Which of the following statement is correct w.r.t. the following graph...
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In Ellingham diagrams of Delta(1)G oxide formation Vs T, which of the ...
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On Ellingham diagrams if two graphs intersect each other, what does th...
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Which of the following is incorrect w.r.t. metallurgy of iron in the b...
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Which of the following has the lowest percentage of carbon in it?
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Which furnace is used for the extraction of iron from haematite ?
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Roasting of sulphide ore is generally performed in
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The final stage of self reduction for the extraction of Cu is carried ...
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Zinc is extracted from zinc oxide by its reaction with coke in
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Which of the following metal is leached by Cyanide process
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Hall Heroult method is used for the extraction of
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During the collection of Al by Hall Heroult method, how much of graphi...
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boiling process is used for:
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Impure zince, as collected from earthen clay retort, is called
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What is the material collected from reverberatory furnace in the metal...
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During smelting, an additional substance is added which combines with ...
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Sulphide ores of metals are usually concentrated by froth floatation p...
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