Question

For lead, Pb, the heat of fusion at its normal melting point of 328 °C is 4.8 kJ/mol.

The entropy change when 2.46 moles of solid Pb melts at 328 °C, 1 atm is _______J/K.

b. For tin, Sn, the heat of fusion at its normal melting point of 232 °C is 7.1 kJ/mol.

The entropy change when 1.73 moles of liquid Sn freezes at 232 °C, 1 atm is ______ J/K.

Answer 1

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