How Much Energy Is Evolved During the Reaction of 51

question 133

Multiple Choice

How much energy is evolved during the reaction of 51.2 g of Al,according to the reaction below? Assume that there is excess Fe₂O₃.
Fe₂O₃(s) + 2 Al(s) → Al₂O₃(s) + 2 Fe(s) ΔH°_rxn = -852 kJ

• A) 51.2 kJ
• B) 448 kJ
• C) 224 kJ
• D) 1617 kJ
• E) 808 kJ

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