15 Torry V Substance X is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the temperature. Additionally, the values of these other properties of X have been determined: melting point enthalpy of fusion density 95. °C 9.00 kJ/mol 2.40 g/cm³ (solid) boiling point enthalpy of vaporization 135. °C 38.00 kJ/mol 31. J.K mol(solid) 2.10 g/mL (liquid) heat capacity 61. J.Kmol -1 (liquid) 61. J.K mol (vapor) 1 You may also assume X behaves as an ideal gas in the vapor phase. 4 Suppose a small sample of X at 50 °C is put into an evacuated flask and heated at a constant rate until 15.0 kJ/mol of heat has been added to the sample. Graph the temperature of the sample that would be observed during this experiment. temperature (°C) 150 140- 130 120 100 90- 30- 70 60- 10 15 50 heat added (kJ/mol) 1 x 5 ala E ?