Question

The enthalpies of the formation of Al₂O₃ and Cr₂O₃ are – 1596 kJ and – 1134 kJ, respectively. ∆H for the reaction \[\ce{2Al + Cr2O3 -> 2Cr + Al2O3}\] is

Options

• – 1365 kJ

• 2730 kJ

• – 2730 kJ

• – 462 kJ

Answer 1

– 462 kJ