Temperature C 1400 1300 Atomic Percent Silicon 0 10 20 30 40 50 60 L 70 Liquidus 80 90 100 1414C Solidus Liquid- 16.5 Wt. % Si Tie Line 1200 Solid- 44.5 W1. % Si 1100 1000 900 938.3C Ge 10 20 30 40 50 60 70 80 90 100 Weight Percent Silicon Si Activity: In the silicon - germanium phase diagram, what are the weight fractions of the solid and liquid present for the temperature of the tie line shown (1200 C) and an overall composition of 30 wt.% Si?