Q1/ There are three alloys ( A,B ,C) have atomic wieght, desity, and atomic radus as listed in following table and avagadro number of 6.022 x10 Classify its crystal structure F.C.C., B.C.C ,or S.C. Alloy atomic weight density (w/ em) atomic radus (g/ mol) 77.4 (nm) 0.125 A 8.22 B 107.6 13.42 0.133 127.3 9.23 0.142

Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter21: The Chemistry Of The Main Group Elements
Section: Chapter Questions
Problem 130SCQ
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Q2/ Calculate the activation energy in( ev /atom) for vacancies formatiom of
( Al ) has ( 7.57 x 10") ( vacancy per m') at 500 e, atomic weight of
(26.98) g/m, density of (2.62) g/em', (Vc) of (1) , avagadro number
of (6.022 x 10"), K of ( 8.62 x 10 ) ev/ atom-k
Transcribed Image Text:Q2/ Calculate the activation energy in( ev /atom) for vacancies formatiom of ( Al ) has ( 7.57 x 10") ( vacancy per m') at 500 e, atomic weight of (26.98) g/m, density of (2.62) g/em', (Vc) of (1) , avagadro number of (6.022 x 10"), K of ( 8.62 x 10 ) ev/ atom-k
QI/ There are three alloys ( A,B,C) have atomic wieght, desity, and atomie
radus as listed in following table and avagadro number of 6.022 x10
Classify its crystal structure F.C.C., B.C.C ,or S.C.
atomic radus
(nm)
0.125
Alloy
atomic weight
(g/ mol)
77.4
density
(g/ em)
8.22
A
B
107.6
13.42
0.133
127.3
9.23
0.142
Transcribed Image Text:QI/ There are three alloys ( A,B,C) have atomic wieght, desity, and atomie radus as listed in following table and avagadro number of 6.022 x10 Classify its crystal structure F.C.C., B.C.C ,or S.C. atomic radus (nm) 0.125 Alloy atomic weight (g/ mol) 77.4 density (g/ em) 8.22 A B 107.6 13.42 0.133 127.3 9.23 0.142
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