Chemistry, 20.10.2019 20:20, squidywar297
With reference to the cu-ag eutectic phase diagram below (image attached), answer the following questions. express all compositions in weight percent ag, e. g. a cu alloy containing 10 weight percent of ag is written as cu-10 wt% ag. don’t use the top horizontal axis on this diagram. first, label all parts of the phase diagram with greek ? , etc.
(a) what is the chemical composition of the very first solid to appear in a liquid alloy of average composition cu -20 wt% ag that is cooled slowly from 1100°c?
(b) at what temperature does this solid begin to form?
(c) for this alloy, (i) what are the compositions (in wt %) of the two phases that are present at 900°c?
(ii) what are the relative fractions/amounts of these two phases that are present at 900°c?
(d) for this alloy, (i) what are the compositions in wt % of the two phases present at 700°c?
(ii) what are the relative fractions/amounts of the two phases present at 700°c?
(e) what is the lowest temperature a liquid cu-ag alloy can exist at and what is the composition of that liquid?
Answers: 2
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With reference to the cu-ag eutectic phase diagram below (image attached), answer the following ques...
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