What is the energy change when 78.0 g of Hg melt at −38.8°C

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6.01 kJ/mol

What is the energy change when 45.7 g of H 2O melt at 0°C? The ΔH fus of H 2O is 6.01 kJ/mol.

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Example 2.

Substance (Normal Boiling Point)ΔH vap (kJ/mol)

Mercury (357°C)59.23

the answer is the

answer; protein;