6) Elemental carbon has one gas phase, one liquid phase, and three different solid phases, as shown in the phase diagram: 1011 Pressure (Pa) 107 10 0 2000 4000 6000 Temperature (K) a. On the phase diagram, label the gas and liquid regions. b. Graphite is the most stable phase of carbon at normal conditions. On the phase diagram, label the graphite phase. c. If graphite at normal conditions is heated to 2500 K while the pressure is increased to 1010 Pa, it is converted into diamond. Label the diamond phase. d. Circle each triple point on the phase diagram. e. In what phase does carbon exist at 5000 K and 10% Pa? f. If the temperature of a sample of carbon increases from 3000 K to 5000 K at a constant pressure of 106 Pa, which phase transition occurs, if any? Note: Answers for a, b, c and d - Draw the phase diagram and label according to your answer.