Please help me solve all of the questions in the picture attached. I have an exam and would greatly appreciate any help!. Thanks alot!

a. For the phase diagram given in fig. I i. Draw free energy vs. composition plots for T1 and T2. ii. Examine the phase diagram to determine if there are any construction errors. If you find errors, identify them and briefly explain why they are errors. a. i. Using the plot in fig. 2 show the location of an alloy with the composition 50%A,30%B and 20%C and find the percentage of the phase. ii. Complete the construction of the isothermal ternary section in fig. 2 . Note that some, but not all single phase regions are given. iii. In a ternary isothermal section in a two-phase region tie lines can not cross. Explain why? Fig.I a. For the phase diagram given in fig. I i. Draw free energy vs. composition plots for T1 and T2. ii. Examine the phase diagram to determine if there are any construction errors. If you find errors, identify them and briefly explain why they are errors. a. i. Using the plot in fig. 2 show the location of an alloy with the composition 50%A,30%B and 20%C and find the percentage of the phase. ii. Complete the construction of the isothermal ternary section in fig. 2 . Note that some, but not all single phase regions are given. iii. In a ternary isothermal section in a two-phase region tie lines can not cross. Explain why? Fig.I