Final 09 part 2

Final 09 part 2 - MEEN 222 Section 501 Fall 2009 Final Exam...

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MEEN 222 Section 501 Fall 2009 Final Exam Part 2 December 14, 2009 Print Name: _____ ______________________________________ GENERAL INSTRUCTIONS: A. Exam time: 1 hour and 15 min B. Read carefully each question C. Numerical problems without clearly indicated procedure will be considered incomplete! D. Part 2 is open book! E. Sign Aggie honor statement. (60 points) Aggie Honor Code: “On my honor, as an Aggie, I have neither given or received unauthorized aid on this academic work” Signature: ____________________________________________________
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_________ out of 60 extra points Part B. Numerical problems B1 (6) Calculate Theoretical density of copper (face centered crystal structure) at room temperature if atomic radius of Cu is 0.128 nm and atomic weight of Cu is 63.55 g/mol. For FCC cm m m R a 8 10 9 10 62 . 3 10 62 . 3 2 / 10 128 . 0 4 2 / 4 × = × = × = = Volume of the unit cell: 3 23 3 29 3 10 74 . 4 10 74 . 4 cm m a V × = × = = Density: 3 23 3 23 / 90 . 8 / 1 10 02 . 6 10 74 . 4 / 55 . 63 4 cm g mol cm mol g VN nA A Fe = × × = = ρ B2 (10) Calculate planar density for (111) plane and linear density for [101] directin in FCC copper. Sketch FCC structure and mark (111) plane [101] direction. Atomic radius of Cu is 0.128 nm.
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This note was uploaded on 01/05/2010 for the course MEEN 222 taught by Professor Radovic during the Spring '08 term at Texas A&M.

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Final 09 part 2 - MEEN 222 Section 501 Fall 2009 Final Exam...

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