Metallrgical process can be explained in terms of thermodynamic princi – InterviewSolution

1.	Metallrgical process can be explained in terms of thermodynamic principles. Reduction of Cr_2O_3 by Aluminium metal is accompained by negative DeltaG^@value and is thermodynamically feasible. Why does this reaction fail at room temperature?
Answer» Answer :The reactions is `Cr_2O_3+2Al rarr Al_2O_3 + 2Cr` for which `DeltaG^@` is negative. Certain amount of ACTIVATION ENERGY is required for this REACTION to take place. So HEATING is required and it does not take place at room temperature.

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