Question

How much heat energy is required to convert 60.2 g60.2 g of solid ethanol at −114.5°C−114.5°C to gasesous ethanol at 169.9°C169.9°C? The molar heat of fusion of ethanol is 4.60 kJ/mol4.60 kJ/mol, and its molar heat of vaporization is 38.56 kJ/mol38.56 kJ/mol. Ethanol has a normal melting point of −114.5°C−114.5°C and a normal boiling point of 78.4°C78.4°C. The specific heat capacity of liquid ethanol is 2.45J/g⋅°C2.45J/g⋅°C, and that of gaseous ethanol is 1.43J/g⋅°C1.43J/g⋅°C.

Answer 1

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