Cite the phases that are present and the phase compositions for the following alloys: (a) 15 wt% sn—85 wt% pb at 100°c [212°f)(b) 25 wt% pb—75 wt% mg at 425°c (800°f)(c) 85 m96 ag—15 wt% cu at 800°c (1470°f)(d) 55 wt% zn—45 wt% cu at 600°c (1110°f](e) 1.25 kg sn and 14 kg pb at 200°c (390°f)(f) 7.6 lbm cu and 144.4 lbm zn at 600°c (1110°f](g) 21.7 mol mg and 35.4 mol pb at 350°c [660°f](h) 4.2 mol cu and 1.1 mol ag at 900°c (1650°f)