Problem 4(20%) Plot Figure 10.9 (David R. Gaskell 4th) You can use excel or any computer program. (a) The calculated phase diagram for the system Ge-Si assuming Raoultian behavior of the solid and liquid solutions, (b) The variations, with temperature, of the partial pressures of Ge and Si (and their sum) with composition along the liquidus line. Problem 4(20%) Plot Figure 10.9 (David R. Gaskell 4th) You can use excel or any computer program. (a) The calculated phase diagram for the system Ge-Si assuming Raoultian behavior of the solid and liquid solutions, (b) The variations, with temperature, of the partial pressures of Ge and Si (and their sum) with composition along the liquidus line