On the basis of describing a solid-liquid regiori of an eutectic-type phase diagram, consider the cases for Nonequilibrium Freezing and answer the following. (24 points) a) Draw the A-rich end of an A-B eutectic phase diagram, choose a uniform nominal composition of Co less than the eutectic composition, CE. Describe the solidification process as the temperature decreases indicate the variable composition of the solid on the solidus as Cs and the variable composition of the liquid on the liquidus as CL. Assuming that both solidus and liquidus as straight lines, what is the composition of the solld.in the beginning of solidification? What is the liquid composition in the beginning of solidification? What are the compositions of solid and liquid just before complete solidification? What is k, and how is it related to Cg and C7... b) Assuming uniform composition in the liquid phase, draw the solute compositional profile along a rod solidified from the left end and indicate the compositions/solubilities on the phase diagram.