Use the following information to construct a heating curve for bromine from 27.2°C to 70.0°C. The molar heat capacity of liquid bromine is 75.69 J · K^–1 · mol^–1 and that of bromine vapor is 36.02 J · K^–1 · mol^–1. The enthalpy of vaporization of liquid bromine is 30.91 kJ · mol^–1. Bromine melts at 27.2°C and boils at 58.78°C.