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Aluminum reacts with iron(III) oxide in the thermite reaction according to the thermochemical equation below. 2Al(s) + Fe2O3(s)2Fe(s) + Al203(s). AH°, = -851.5 kJ/mol What is the enthalpy of this reaction when 13.0 g of aluminum reacts with excess iron(III) oxide? The molar mass of aluminum is 26.98 g/mol. A. +410. kJ/mol B. -410. kJ/mol C. +205. kJ/mol D. -205 kJ/mol

Aluminum reacts with iron(III) oxide in the thermite reaction according to the thermochemical equation below. 2Al(s) + Fe2O3(s)2Fe(s) + Al203(s). AH°, = -851.5 kJ/mol What is the enthalpy of this reaction when 13.0 g of aluminum reacts with excess iron(III) oxide? The molar mass of aluminum is 26.98 g/mol. A. +410. kJ/mol B. -410. kJ/mol C. +205. kJ/mol D. -205 kJ/mol

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Aluminum reacts with iron(III) oxide in the thermite reaction according to the thermochemical equation below.

      2Al(s) + Fe2O3(s)⟶⟶2Fe(s) + Al2O3(s).         ΔΔHor = -851.5 kJ/mol

What is the enthalpy of this reaction when 13.0 g of aluminum reacts with excess iron(III) oxide?  The molar mass of aluminum is 26.98 g/mol.

Aluminum reacts with iron(IIl) oxide in the thermite reaction according to the thermochemical equation below. 2Al(s) + Fe2O3(s)–2Fe(s) + Al2O3(s). AH°, = -851.5 kJ/mol What is the enthalpy of this reaction when 13.0 g of aluminum reacts with excess iron(III) oxide? The molar mass of aluminum is 26.98 g/mol. A. +410. kJ/mol B. -410. kJ/mol C. +205. kJ/mol D. -205 kJ/mol
Transcribed Image Text:Aluminum reacts with iron(IIl) oxide in the thermite reaction according to the thermochemical equation below. 2Al(s) + Fe2O3(s)–2Fe(s) + Al2O3(s). AH°, = -851.5 kJ/mol What is the enthalpy of this reaction when 13.0 g of aluminum reacts with excess iron(III) oxide? The molar mass of aluminum is 26.98 g/mol. A. +410. kJ/mol B. -410. kJ/mol C. +205. kJ/mol D. -205 kJ/mol
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