For the following reactions,the ΔH°_rxn is NOT equal to ΔH°_f for the product except for ________. A)H₂O (l)+ 1/2O₂ (g)→ H₂O₂ (l) B)N₂ (g)+ O₂ (g)→ 2NO (g) C)2H₂ (g)+ O₂ (g)→ 2H₂O (l) D)2H₂ (g)+ O₂ (g)→ 2H₂O (g) E)none of the above

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Quizplus · Accepted Answer

The standard enthalpy change of reaction (ΔH°_rxn) is generally not equal to the standard enthalpy change of formation (ΔH°_f) for the product, except in cases where the reaction directly forms a compound from its elements in their standard states. None of the given reactions exclusively form a compound directly from its elements in their standard states without involving other substances or states, thus ΔH°_rxn does not equal ΔH°_f for the product in any of the given reactions.

For the Following Reactions,the ΔH°rxn Is NOT Equal to ΔH°f

For the Following Reactions,the ΔH°_rxn Is NOT Equal to ΔH°_f