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    Exam 6: Thermochemistry
  5. Question
    Use the Δ<Sub>f</sub>H° and Δ<Sub>r</sub>H°<sub> </Sub>information Provided to Calculate Δ<Sub>f</sub>H°
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Use the ΔfH° and ΔrH° information Provided to Calculate ΔfH°

Question 1

Question 1

Multiple Choice

Use the ΔfH° and ΔrH° information provided to calculate ΔfH° for SO3(g) : ΔfH° (kJ mol-1) 2SO2(g) + O2(g) → 2SO3(g) ΔrH° = -198 kJ
SO2(g) -297


A) -792 kJ mol-1
B) -248 kJ mol-1
C) -495 kJ mol-1
D) -578 kJ mol-1
E) -396 kJ mol-1

Correct Answer:

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