Problem: Calculate the change in entropy that occurs in the system when 45.0 g of acetone (C3H6O) freezes at its melting point (-94.8 ˚C). ΔHfus = 5.69 kJ/mol.

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FREE Expert Solution

We can use the formula below to determine the entropy change(ΔS):

S=HfusT

where ΔHfus is the heat of fusion

            T is the temperature in Kelvin (K)

Recall:

1 kJ = 103 J

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Problem Details

Calculate the change in entropy that occurs in the system when 45.0 g of acetone (C3H6O) freezes at its melting point (-94.8 ˚C). ΔHfus = 5.69 kJ/mol.