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3. A given liquid substance is known to freeze at -4.0 C when the external pressure is 1 bar, and its density (upon freezing) changes

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3. A given liquid substance is known to freeze at -4.0 C when the external pressure is 1 bar, and its density (upon freezing) changes from 0.654 g/mL to 0.660 g/mL. Enthalpy of fusion is 7.0 kJ/mol. Assume the molar mass is 60 g/mol. Compute the freezing temperature of this liquid when the external pressure is 5 MPa

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