Question Detail
Question
Calculate ΔS° for the reaction N₂(g) + 3H₂(g) → 2NH₃(g) using S°(NH₃) = 192.5, S°(N₂) = 191.5, S°(H₂) = 130.6 J/mol·K.
Correct Answer
Option B is the correct answer.
Detailed Explanation
ΔS° = 2(192.5) - [191.5 + 3(130.6)] = 385.0 - [191.5 + 391.8] = 385.0 - 583.3 = -198.3 J/mol·K.
Hint
The notes provide this exact calculation.