Calculate Δ_rG° at 298 K Using the Following Information $\quad$ $\quad$

question 76

Multiple Choice

Calculate Δ_rG° at 298 K using the following information:
$\quad$$\quad$$\quad$$\quad$$\quad$ 4HNO₃(g) + 5N₂H₄(l) → 7N₂(g) + 12H₂O(l) Δ_rG° = ?
Δ_fH° (kJ mol^-1) -133.9 $\quad$$\quad$ 50.6 $\quad$$\quad$$\quad$ -285.8
S°(J K^-1 mol^-1) 266.9 $\quad$$\quad$ 121.2 $\quad$ 191.6 $\quad$ 70.0

• A)+4.90 × 10³ kJ mol^-1
• B)+3.90 × 10³ kJ mol^-1
• C)-2.04 × 10³ kJ mol^-1
• D)-3.15 × 10³ kJ mol^-1
• E)-3.30 × 10³ kJ mol^-1

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