How much energy (in kilojoules) is released when 30.5g ofethanol vapor at 97.5?C is cooled to -16.5?C? Ethanol has mp =-114.5 ?C, bp = 78.4 ?C, ?Hvap = 38.56 kJ/mol and ?Hfusion = 4.60kJ/mol. The molar heat capacity is 113 J/(K?mol) for the liquid and65.7 J/(K?mol) for the vapor.
