# quiz2 - Question 1 2 out of 2 points For an overall...

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Question 1 2 out of 2 points For an overall composition C 0 = 30 wt % Ag (70 wt % Cu) in the Cu- Ag phase system, determine the phase(s) at equilibrium at 900 o C. Answer Selected Answer: α + L Correct Answer: α + L Response Feedback:

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Question 2 2 out of 2 points For an overall composition C 0 = 40 wt % Ag (60 wt % Cu) in the Cu- Ag phase system, determine the composition of all the phases at equilibrium at 600 o C.
Answer Selected Answer: C C Correct Answer: C C Response Feedback: Correct Using the tie line we get the compositions of both phases, C the intersections of the tie line with the α and β solvus lines. Question 3 1 out of 2 points For an overall composition C 0 =

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60 wt % Ag (40 wt % Cu) in the Cu- Ag phase system, determine the fractional amounts of all the phases at equilibrium at 778 o C. Answer Selected Answer: W W Correct Answer: W W Response Feedback: Incorrect Using the tie line we get the fractional amount of both phases by taking the fractional line lengths. The temperature 778
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## This document was uploaded on 10/26/2011 for the course ENGL 250 at Iowa State.

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quiz2 - Question 1 2 out of 2 points For an overall...

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