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The following thermochemical equation is for the reaction of iron(III) oxide(s) with hydrogen (g) to form iron(s) and water(g). Fe₂O3(s) + 3H₂(g)—2Fe(s) + 3H₂O(g) ΔΗ = 98.8 kJ When 49.7 grams of iron(III) oxide(s) react with excess hydrogen (g), kJ of energy are Hint: An amount of energy is expressed as a positive number. The sign of AH in the thermochemical equation indicates whether the energy is absorbed or evolved.

The following thermochemical equation is for the reaction of iron(III) oxide(s) with hydrogen (g) to form iron(s) and water(g). Fe₂O3(s) + 3H₂(g)—2Fe(s) + 3H₂O(g) ΔΗ = 98.8 kJ When 49.7 grams of iron(III) oxide(s) react with excess hydrogen (g), kJ of energy are Hint: An amount of energy is expressed as a positive number. The sign of AH in the thermochemical equation indicates whether the energy is absorbed or evolved.

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.43QE: Another reaction that is used to propel rockets is N2O4(l)+2N2H4(l)3N2(g)+4H2O(g) This reaction has...
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The following thermochemical equation is for the reaction of iron(III) oxide(s) with hydrogen (g) to form iron(s) and water(g). Fe2O3(s) + 3H₂(g)—2Fe(s) + 3H₂O(g) AH = 98.8 kJ When 49.7 grams of iron(III) oxide(s) react with excess hydrogen(g), kJ of energy are Hint: An amount of energy is expressed as a positive number. The sign of AH in the thermochemical equation indicates whether the energy is absorbed or evolved.
Transcribed Image Text:The following thermochemical equation is for the reaction of iron(III) oxide(s) with hydrogen (g) to form iron(s) and water(g). Fe2O3(s) + 3H₂(g)—2Fe(s) + 3H₂O(g) AH = 98.8 kJ When 49.7 grams of iron(III) oxide(s) react with excess hydrogen(g), kJ of energy are Hint: An amount of energy is expressed as a positive number. The sign of AH in the thermochemical equation indicates whether the energy is absorbed or evolved.
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