22 December, 01:33
Calculate the standard reaction free energy of the following chemical reaction:
2Al (s) + Fe2O3 (s) → Al2O3 (s) + 2Fe (s)
22 December, 02:32
The question is incomplete, the complete question is:
Calculate the standard enthalpy change for a reaction? : Fe2O3 (s) + 2Al (s) = Al2O3 (s) + 2Fe (s).
The standard enthalpies of formation of Fe2O3 and Al2O3 are
-822 and - 1669 KJ mol-1 respectively. State whether the reaction is exothermic or
∆H°reaction = - 847KJmol-1
Recall that ∆H°element = 0KJ mol-1
∆H°reaction = ∆H°products - ∆H°reactants
= (-1669) - (-822) = - 847KJmol-1
The reaction is exothermic as ∆H°reaction is negative.
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» Calculate the standard reaction free energy of the following chemical reaction: 2Al (s) + Fe2O3 (s) → Al2O3 (s) + 2Fe (s)