The Ellingham diagram for zinc,magnesium,and | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) In an Ellingham diagram,a metal can reduce the oxide of another metal if the former's oxidation line lies below the latter's line at a given tempe

Vedclass · Accepted Answer

$ZnO + Mg 	o MgO + Zn$

Vedclass · Answer

(D) In an Ellingham diagram,a metal can reduce the oxide of another metal if the former's oxidation line lies below the latter's line at a given temperature. At $1100 \, ^oC$,the line for the formation of $MgO$ is significantly below the line for the formation of $ZnO$. Therefore,$Mg$ can effectively reduce $ZnO$ to $Zn$. The reaction $ZnO + Mg 	o MgO + Zn$ has the most negative Gibbs free energy change $(\Delta G)$ among the given options,making it the most spontaneous reaction.

The Ellingham diagram for zinc,magnesium,and carbon converting into corresponding oxides is shown below. At $1100 \, ^oC$,which reaction is spontaneous to a maximum extent?

Similar Questions

Write down the reactions taking place in the blast furnace related to the metallurgy of iron in the temperature range $500-800 \ K$.

In the metallurgy of copper,metallic copper is finally formed in the furnace by the reactions:

Assertion : Coke and flux are used in smelting.
Reason : The phenomenon in which ore is mixed with suitable flux and coke is heated to fusion is known as smelting.

During the extraction of copper from copper pyrite,the flux used for the removal of ferrous oxide is:

At a site,low grade copper ores are available and zinc and iron scraps are also available. Which of the two scraps would be more suitable for reducing the leached copper ore and why?

Vedclass Test Series

Exam Paper Generator

Online Exam Module