You are given the following phase diagram of limited miscibility in the solid state.
A)Draw the situation in the furnace (melting pot) for a mixture of 40 at% Sn at 250°C, 150°C and 50°C (sketch only the grains and remaining melt)
B)Determine at 100°C the concentration of Sn and Bi in the α-grains and β-grains
C)Determine at 100°C the mass % of α-grains, β-grains and remaining melt
D )Sketch the temperature of the melt during cooling at this concentration

b）
T=100℃ Bi Sn
α-grains
β-grains
c）
T=100℃ α-grains β-grains Melt
Mass