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