Metallurgical Engineering > GATE 2023 > Thermodynamics
At one atmosphere pressure, iron (Fe) and nickel (Ni) oxidize as
2Fe + O2 ↔ 2FeO with ΔG° = -527400 + 128 T Joules,
2Ni + O2 ↔ 2NiO with ΔG° = -471200 + 172 T Joules.
Identify the correct statement.
Given: Temperature, T is in Kelvin
A
Fe can reduce NiO at all temperatures
B
Fe can reduce NiO only above 1000 K
C
Ni can reduce FeO at all temperatures
D
Ni can reduce FeO only above 1000 K

Correct : c

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iron nickel oxidation GATE Metallurgical Engineering 2023 iron reduction nickel oxide nickel reduction iron oxide metallurgical engineering gate oxidation reduction reactions GATE 2023 iron nickel redox temperature oxidation reduction

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