Question: A 50 wt% Pb-50 wt% Mg alloy is slowly cooled from 700C (1290F) to 400C (750F). (a) At what temperature does the first solid phase

A 50 wt% Pb-50 wt% Mg alloy is slowly cooled from 700°C (1290°F) to 400°C (750°F).
(a) At what temperature does the first solid phase form?
(b) What is the composition of this solid phase?
(c) At what temperature does the liquid solidify?
(d) What is the composition of this last remaining liquid phase?

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