For Which One of the Following Reactions Is the Value

question 49

Multiple Choice

For which one of the following reactions is the value of ΔH°_rxn equal to ΔH°_f for the product?

• A)H₂ (g) + 1/2 O₂ (g) → H₂O (l)
• B)H₂ (g) + O₂ (g) → H₂O₂ (l)
• C)2C (s, graphite) + 2H₂ (g) → C₂H₄ (g)
• D)1/2 N₂ (g) + O₂ (g) → NO₂ (g)
• E)all of the above

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