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Q. No.The enthalpies of formation of Al2O3 and Cr2O3 are – 1596 kJ and – 1134 kJ, respectively. ∆H for the reaction 2Al + Cr2O3 → 2Cr + Al2O3 is -
| 1. | –1365 kJ | 2. | 2730 kJ |
| 3. | –2730 kJ | 4. | –462 kJ |
Subtopic: Hess's Law |
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