2. Below is a binary eutectic equilibrium phase diagram of silver and copper (Ag-Cu). 1200 1100 1084.62"C 1000 961 78"C 900 800- 779.1"C Temperature 'C 700- 600 500 400- 300 200- 30 40 50 60 70 160 Weight Percent Copper Cu a. Complete the following chart for the given overall compositions and temperatures of interest (i.e., determine the PHASE CONSTIUTION which includes; phases present, their individual chemical composition and the relative amount of each phase present. [3 marks for each composition] Overall Comp. T Phase(s) wt% Cu Weight Fraction of wt% Cu (.c) Present of each phase each phase 5 900 5 400 15 800 28.1 780 28.1 778 28.1 400 50 780 60 778 95 778 95 400