6. The Ag-Al phase diagram is shown below with #1-6 specific points on the the y

Question

6. The Ag-Al phase diagram is shown below with #1-6 specific points on the the y- diagram. The upper x-axis indicating axis is temperature is in weight Al, the lower is atomic a) Give in Kelvin. Answer the following questions: is the bottom tip of degrees of freedom each of that point 5 the b) maximum at wt. Ag is soluble in Al and at what temperature does it occur? c) How many peritectics are there on this diagram? (for cooling) found in this diagram giving the peritectic composition and temperature d) How many eutectics are there on this diagram? Write a eutectic reaction (for cooling) found in this diagram giving the eutectic composition and temperature. e) A peritectoid is "an upside down eutectoid." ite a peritectoid reaction (upon cooling) found in this diagram giving the peritectoid composition and temperature. Give the composition(s) and amount(s) of the phase(s) present (in mol. at point 6 10 12 15 10 20 o

Explanation / Answer

Dear student,

a)The rule is stated in terms of the number of phases (P), the number of components (C) and the degrees of freedom (F) of a heterogeneous system.

Mathematically, it is expressed as P+ F = C + 2

for point 1 degrees of freedom will be F =

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