Practice question
Question
Calculate Δ Ssurr when 2 mol of a substance melts at 300 K if Δ Hfus = 8 kJ/mol.
Explanation
Δ H = 2 × 8 = 16 kJ, Δ Ssurr = -Δ H / T = -16 × 10³ / 300 = -53.33 J/K.
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