Question
Class 11ChemistryThermodynamics

Calculate the entropy change involved in conversion of one mole (18g) of solid ice at 273 K to liquid water at the same temperature (latent heat of fusion = 6025 J mol–1).

Verified Answer

Entropy change for ice → water is given by  Δ fS fH/Tf

Here, Δ fH = 6025 J mol−1, T f = 273 K       

∴   Δ fS =(6025 JK −1 mol −1)/273 K

= 22.1 JK −1 mol −1