Calculate the heat (in kJ) required to transform 70.80 g of bromine from a solid at a temperature of -7.2 C to a gas at 92 C. Report your answer to...

Calculate the heat (in kJ) required to transform 70.80 g of bromine from a solid at a temperature of -7.2 °C to a gas at 92 °C. Report your answer to one decimal place.

Data:

Molar mass of bromine, Br 2 = 159.808 g/mol

Melting point = -7.2 °C

Boiling point = 59°C.

Enthalpy of fusion = 10.57 kJ/mol

Enthalpy of vaporization = 29.96 kJ/mol.

Molar heat capacity of the liquid phase = 75.7 J/mol • K

Molar heat capacity of the gas phase= 36 J/mol • K.