The enthalpies of formation of Al2O3 and Cr2O3 are −1569 KJ and −1 – InterviewSolution

InterviewSolution

1.

The enthalpies of formation of Al2O3 and Cr2O3 are −1569 KJ and −1134 KJ respectively. ΔH for the reaction 2Al + Cr2O3 → 2Cr + Al2O3 is

Answer»

The enthalpies of formation of $A l_{2} O_{3}$ and $C r_{2} O_{3}$ are $- 1569 K J$ and $- 1134 K J$ respectively. $Δ H$ for the reaction

$2 A l + C r_{2} O_{3} \to 2 C r + A l_{2} O_{3}$ is

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