List of top Metallurgical Thermodynamics Questions

At one atmosphere pressure, \(\alpha\)-Fe transforms to \(\gamma\)-Fe above 912 \(^{\circ}\)C. Density of \(\gamma\)-Fe is more than that of \(\alpha\)-Fe. Choose the correct statement.
Formation of an ideal solution leads to
At one atmosphere pressure, iron (Fe) and nickel (Ni) oxidize as
\(2\text{Fe} + \text{O}_2 ⇒ 2\text{FeO} \Delta G^\circ = -527400 + 128 T \text{ Joules}\)
\(2\text{Ni} + \text{O}_2 ⇒ 2\text{NiO} \Delta G^\circ = -471200 + 172 T \text{ Joules}\)
Identify the correct statement.
Given: Temperature, T is in Kelvin