Answer to Question #348240 in General Chemistry for cece

General Chemistry

Question #348240

Using Bond energy reference sheet to calculate Δ H for the balanced reaction below:

C₈H₁₈ (l) + 12.5 O₂ (g) è 8 CO₂ (g) + 9 HOH (g)

Expert's answer

Correct option is A)

ΔH=Σbondenergyofreactant−ΣbondenergyofproductδH=(436+499)−(460+142+460)ΔH=−127kJ

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