1)Calculate the enthalpy change for the thermite reaction: 2Al(s)+Fe2O3(s)→2Fe(s)+Al2O3(s), ΔH∘rxn=−850 kJ when 12.0 mol of Al undergoes the reaction with a stoichiometrically equivalent amount of Fe2O3. Express your answer to three significant figures and include the appropriate units.
2)How much heat (in kilojoules) is evolved or absorbed in the
reaction of 2.15 g of Na with H2O?
2Na(s)+2H2O(l)→2NaOH(aq)+H2(g) ΔH∘ = -368.4kJ.
3)How much heat (in kilojoules) is evolved or absorbed in the
reaction of 3.70 g of Fe2O3 with enough carbon monoxide to produce
iron metal?
Fe2O3(s)+3CO(g)→2Fe(s)+3CO2(g) ΔH∘ = -24.8kJ.
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1)Calculate the enthalpy change for the thermite reaction: 2Al(s)+Fe2O3(s)→2Fe(s)+Al2O3(s), ΔH∘rxn=−850 kJ when 12.0 mol of Al...