Home
Class 12
CHEMISTRY
With the help of Ellingham diagram, expl...

With the help of Ellingham diagram, explain why Al can reduce MgO at high temperature.

Text Solution

Verified by Experts


The `DeltaG^(@)` v/s T curve for `Al_(2)O_(3) and MgO` intersect each other at a temperature of 1573K i.e., `1300^(@)C`. This is due to the formation of kink in the curve of MgO. At temperature greater than `1300^(@)C`, curve of formation of `Al_(2)O_(3)` lies below that of `MgO`. Hence Al can reduce MgO at high temperature.
Promotional Banner

Topper's Solved these Questions

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    OSWAAL PUBLICATION|Exercise TOPIC 2 (LONG ANSWER TYPE QUESTIONS-I)|13 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    OSWAAL PUBLICATION|Exercise TOPIC 2 (LONG ANSWER TYPE QUESTIONS-II)|2 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    OSWAAL PUBLICATION|Exercise TOPIC 2 (VERY SHORT ANSWER TYPE QUESTIONS)|18 Videos

  • ELECTRO-CHEMISTRY

    OSWAAL PUBLICATION|Exercise Topic - 3 ELECTROLYSIS , LAWS OF ELECTROLYSIS, BATTERIES, FUEL CELLS AND CORROSION (LONG ANSWER TYPE QUESTIONS)|4 Videos

  • HALOALKANES & HALOARENES

    OSWAAL PUBLICATION|Exercise Topic 2 (Properties of Haloarenes and Haloalkanes) (Long Answer Type Questions - II)|1 Videos

Similar Questions

Explore conceptually related problems

With the help of Ellingham diagram explain why silver oxide can be decomposed at a relatively lower temperature.

With the help of a diagram explain plasmid BR322.

With the help of a labelled diagram. Explain why the sun appears reddish at sunrise and sunset.

With the help of suitble diagrams, explain the process of transcription in bacteria.

With the help of a diagram, explain the physical significance of energy of activation (E_(a)) in chemical reactions.

With the help of neat labelled diagram explain Stanley Miller's experiment in support.

With the help of neat labelled diagram explain Stanley Miller's experiment in support.

For which of the following reactions is a combination of high pressure and high temperature helpful in obtaining a high yield of products ?