E115_Problem_Set_14 - e 115 Engineering Thermodynamics...

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e 115 Engineering Thermodynamics Fall 2009 University of California Problem set 14 Due: Wednesday, October 14 th , in lecture 1) ( 30 points ) This problem is intended to make you intimately familiar with simple one-component phase diagrams. This question will be broken up over two problem sets, so you may wish to keep a photocopy of this problem set for reference for the homework due on Friday. We choose as the vehicle for this homework problem, the element Ni. Nickel is an interesting material, and the basis for many structural alloys. It is also somewhat intriguing from a phase diagram point of view. The normal melting point of Ni is well defined. Quoted values for the melting point generally lie between 1453–1456°C, with the currently accepted melting point 1455.2°C often rounded to 1455°C. It is this rounded value that we will use as the normal melting point. The normal boiling point, defined as the temperature at which the vapor pressure of the liquid reaches one atmosphere (= 760 mm Hg) is not well defined. A quick look at twenty or
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This note was uploaded on 02/12/2011 for the course E 115 taught by Professor Staff during the Fall '08 term at University of California, Berkeley.

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E115_Problem_Set_14 - e 115 Engineering Thermodynamics...

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