The Ellingham diagram of a certain metal M is | vedclass

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

Question

(D) In an Ellingham diagram,the slope of the line $\Delta G^0$ vs $T$ is given by $\Delta S^0$. $A$ change in the slope of the line indicates a phase

Vedclass · Accepted Answer

Melting point and boiling point of metal

Vedclass · Answer

(D) In an Ellingham diagram,the slope of the line $\Delta G^0$ vs $T$ is given by $\Delta S^0$. $A$ change in the slope of the line indicates a phase change of the metal or the oxide. At point $A$,the metal $M$ undergoes a phase change (melting),which leads to an increase in entropy,thus changing the slope. At point $B$,the metal oxide $MO_2$ undergoes a phase change (boiling/vaporization),which further changes the slope. Therefore,points $A$ and $B$ correspond to the melting point and boiling point of the metal/oxide respectively.

The Ellingham diagram of a certain metal $M$ is represented in the figure. The points $A$ and $B$ respectively correspond to:

Similar Questions

In the process of extraction of gold,
Roasted gold ore $+ CN^{-} + H_2O \xrightarrow{O_2} [x] + OH^{-}$;
$[x] + Zn \rightarrow [y] + Au$
$[x]$ and $[y]$ are :

Explain the extraction of: $(i)$ Copper from Copper$(I)$ oxide,$(ii)$ Zinc from zinc oxide.

The final step for the extraction of copper from copper pyrite in the Bessemer converter involves the reaction:

State the role of silica in the metallurgy of copper.

In the alumino-thermite process,what does $Al$ act as?

Vedclass Test Series

Exam Paper Generator

Online Exam Module