The heat of fusion of ethanol (Hf) = 4.6KJ/mole = 4600J/mole
freezes at -114.30C
T = -114.3+273 = 158.7K
S = Hf/T
= 4600J/mole/158.7K
= 29J/mole-K
no of moles of ethanol = W/G.M.Wt
= 563/46 = 12.24moles
1 mole of ethanol entropy change = 29J/K
12.24 moles of ethanol entropy change = 29*12.24/1 = 355J/K
S = 3.55*10^2J/K
round off
= 3.6*10^2 J/K >>>>>answer
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