What Is the Change in Enthalpy at 25°C and 1

question 39

Multiple Choice

What is the change in enthalpy at 25°C and 1 atm for the reaction of 5.00 mol of elemental iron with excess oxygen gas?
4Fe(s) + 3O₂(g) → 2Fe₂O₃(s) ; ΔH° = -1651 kJ

• A)−1651 kJ
• B)2751 kJ
• C)206 kJ
• D)2063 kJ
• E)−412.8 kJ

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