QJEEM22Ch9f1c: JEE Main 2022 Chemistry - Class 12 JEEM22Ch9f1c Solution: Given below are two statements : Statement I : According to…

Ellingham diagram is plot of $$\mathrm{\Delta }$$G vs T. The criterion for the feasibility of a thermal reduction is that at a given temperature Gibbs energy change of a reaction must be negative. The change in Gibbs energy, $$\mathrm{\Delta }$$G for any process at any specified temperature is given by the equation

$$\mathrm{\Delta }$$G = $$\mathrm{\Delta }$$H - T$$\mathrm{\Delta }$$S

where $$\mathrm{\Delta }$$H = enthalpy change and $$\mathrm{\Delta }$$S = entropy change

According to the ellingham diagram, any metal oxide with higher $$\mathrm{\Delta }$$G° has a tendency of getting reduced by the metal whose metal oxide has lower value of $$\mathrm{\Delta }$$G°.