Acetylene Torches Utilize the Following Reaction

question 76

Multiple Choice

Acetylene torches utilize the following reaction:
2 C₂H₂(g) + 5 O₂(g) → 4 CO₂(g) + 2 H₂O(g)
Use the given standard enthalpies of formation to calculate ΔH° for this reaction.

• A)2512.4 kJ
• B)1256.2 kJ
• C)-1256.2 kJ
• D)-2512.4 kJ

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