1. A 50wt% Pb-50wt% Mg alloy is slowly cooled from 700°C to 400°C. (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 completely? (d)What is the composition of this last remaining liquid phase? Temperature (°C) 700 600 500 400 300 200 100 D 20 40 Composition (at Pb) 10 60 Composition (wt% Pb) 40 70 100 1200 1000 900 Mg-Pb 600 400 200 Mg Pb 100 (Pb) Temperature F

1. A 50wt% Pb-50wt% Mg alloy is slowly cooled from 700°C to 400°C. (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 completely? (d)What is the composition of this last remaining liquid phase? Temperature (°C) 700 600 500 400 300 200 100 D 20 40 Composition (at Pb) 10 60 Composition (wt% Pb) 40 70 100 1200 1000 900 Mg-Pb 600 400 200 Mg Pb 100 (Pb) Temperature F

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter9: Liquids, Solids, And Materials

Section: Chapter Questions

Problem 92QRT

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