What is the change of entropy associated with 3.0 kg of water freezing to ice at 0.°C?

Question

Quizplus · Accepted Answer

The change in entropy (ΔS) when water freezes is negative because the process is exothermic and involves a decrease in disorder. The latent heat of fusion for water is approximately 80 kcal/kg. For 3 kg of water, the heat removed is 3 kg * 80 kcal/kg = 240 kcal. The change in entropy is ΔS = -Q/T = -240 kcal / 273 K ≈ -0.88 kcal/K.

What Is the Change of Entropy Associated with 3