A Bi-50% Sb alloy is heated to 400C. The composition of the liquid phase is about 650 630.6 "C 600 550 Liquid O 500 450 400 350- 300 250 271.4 °C 200 10 20 30 40 50 60 70 80 90 100 Bi Atomic percent Sb Sb 28% d. 42% a. 30% D. е. 72% none of the choices Temperature (°C)

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