What amount of heat (in kJ) is required to convert 14. 0 g of an unknown liquid (MM = 67. 44 g/mol) at 43. 5 °C to a gas at 128. 2 °C? (specific heat capacity of liquid = 1. 18 J/g･°C; specific heat capacity of gas = 0. 792 J/g･°C; ∆Hvap = 30. 1 kJ/mol; normal boiling point, Tb = 97. 4°C)
