How much heat is required to convert 30.0 g of ethanol at 28 C to the vapor phase at 78 C ?
additional info:
Ethanol (C2H5OH) boils at 78 C. Its density is 0.789 g/mL. The enthalpy of vaporization is 38.56 kJ/mol . The specific heat of liquid ethanol is 2.3 J/g-K.