An organic chemist investigated how the temperature of a sample of a newly synthesized compound, Compound G-2, varied as it was heated in a sealed calorimeter at a constant rate of energy input. The sample starts as a solid and is heated until it has completely vaporised into a gas. The results are shown in the temperature-time graph below.
Explain how the graph shows that the specific heat capacity of the solid state of Compound G-2 is less than the specific heat capacity of its liquid state.
Explain how the graph shows that the specific latent heat of fusion of Compound G-2 is less than its specific latent heat of vaporisation.
During the boiling phase, a mass of 0.060 kg of the liquid compound was converted into gas. The constant heater supplied a total of 135 kJ of energy to the sample during this phase change. Calculate the specific latent heat of vaporisation of Compound G-2. Give the unit.