Naphtaalne, C10H8, melts at 80.2C. If the vapour pressure of the liquid is 1.3kPa at 85.8C and 5.3 kPa at 119.3C, use the Clausius-Clapeyron equation to calculate (a) Enthalpy of vaporization, (b) the normal boiling point, and (c) the enthalpy of vaporization at the boiling point.