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Calculate the enthalpy of fusion of naphthalene (C10H8) given that its melting point is 128 Celsius and its entropy of fusion is 47.7 J (k*mol) .

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dG = dH-TdS
dG = 0 at the phase change.

dHfusion = Tfusion x dSfusion
dHfusion = 128 x 47.7 = ?

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