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

question 97

Multiple Choice

For the following reactions,the ΔH°_rxn is NOT equal to ΔH°_f for the product except for ________.

• A)N₂ (g)+ O₂ (g)→ 2NO (g)
• B)2H₂ (g)+ O₂ (g)→ 2H₂O (l)
• C)2H₂ (g)+ O₂ (g)→ 2H₂O (g)
• D)2C (s, graphite)+ 2H₂(g)→ C₂H₄ (g)
• E)H₂O (l)+ 1/2 O₂ (g)→ H₂O₂ (l)