Monday
April 21, 2014

Homework Help: chemistry

Posted by danhil on Monday, December 17, 2012 at 6:04am.

Answer the following questions by referring to the Cu-Al phase diagram shown below.


(a) What is the lowest temperature at which a liquid can be found in a system of any composition of Cu-Al?

correct


(b) A common alloy composition used in airplanes is 4 at. % Cu - 96 at. % Al. For this overall system composition, identify what phases are present at 500 degrees C. Select all phases present:



Liquid

Vapor

Al

Cu

CuAl2

CuAl

Cu1.5Al

Cu9Al4

Cu4Al

Cu0.75Al0.25
(c) What phases are present at a 50/50 mixture of Al/Cu at 660 degrees C? Select all phases present:



Liquid

Vapor

Al

Cu

CuAl2

CuAl

Cu1.5Al

Cu9Al4

Cu4Al

Cu0.75Al0.25
You have used 1 of 3 submissions
(d) In the previous question, you should have identified two phases. What is the phase fraction of the first phase you identified?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - Answer the following questions by referring to the Cu-Al phase ...
Chemistry - Answer the following questions by referring to the Cu-Al phase ...
Chemistry - Answer the following questions by referring to the Cu-Al phase ...
Chemistry - Aluminum reacts with excess copper(II) sulfate according to the ...
Chemistry - Arrange the following ions (Cu^2+. Zn^2+, Al^3+, and Mg^2+) in order...
chemistry - Calculate the standard reduction potential for the reaction of Cu(...
Chemistry - Which one of the following combinations of reagents will result in a...
Chemistry - I think these I know how to do ....just want someone to check..still...
chemistry - Which half-reaction represents reduction? Choose one answer. a. Cu...
Chemistry - For the following electrochemical cell, what is the correct, ...

Search
Members