Advertisements
Advertisements
प्रश्न
For the reduction of \[\ce{FeO}\] at the temperature corresponding to point D, which of the following statements is correct?
पर्याय
∆G value for the overall reduction reaction with carbon monoxide is zero.
∆G value for the overall reduction reaction with a mixture of 1 mol carbon and 1 mol oxygen is positive.
∆G value for the overall reduction reaction with a mixture of 2 mol carbon and 1 mol oxygen will be positive.
∆G value for the overall reduction reaction with carbon monoxide is negative.
Advertisements
उत्तर
∆G value for the overall reduction reaction with carbon monoxide is zero.
Explanation:
At point D, ∆g curve for the formation of \[\ce{CO2}\] from \[\ce{CO}\] and \[\ce{FeO}\] from \[\ce{Fe}\] intersect each other therefore, overall reduction of \[\ce{FeO}\] with \[\ce{CO}\] is zero.
APPEARS IN
संबंधित प्रश्न
How is ‘cast iron’ different from ‘pig iron’?
Is it true that under certain conditions, Mg can reduce SiO2 and Si can reduce MgO? What are those conditions?
Why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction?
Write down the reactions taking place in different zones in the blast furnace during the extraction of iron.
Write chemical reactions taking place in the extraction of zinc from zinc blende.
State the role of silica in the metallurgy of copper.
The choice of a reducing agent in a particular case depends on thermodynamic factor. How far do you agree with this statement? Support your opinion with two examples.
Write chemical reactions taking place in the extraction of copper from Cu2 S.
In the extraction of copper from its sulphide ore, the metal is formed by the reduction of \[\ce{Cu2O}\] with ______.
In the metallurgy of aluminium ______.
For the metallurgical process of which of the ores calcined ore can be reduced by carbon?
(i) Haematite
(ii) Calamine
(iii) Iron pyrites
(iv) Sphalerite
The purest form of iron is prepared by oxidising impurities from cast iron in a reverberatory furnace. Which iron ore is used to line the furnace? Explain by giving reaction.
Write down the reactions taking place in Blast furnace related to the metallurgy of iron in the temperature range 500-800 K.
Explain the following:
Generally sulphide ores are converted into oxides before reduction.
Explain the following:
Silica is added to the sulphide ore of copper in the reverberatory furnace.
Explain the following:
Carbon and hydrogen are not used as reducing agents at high temperatures.
A cuprous ore among the following is:-
Heating of MgCl2 6H2O in absence of HCl gives ______.
