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![[Post New]](/templates/default/images/icon_minipost_new.gif) 3 Apr 2008 11:14:13 IST
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cal d density of diamond 4m d fact dat it has fcc structure wid 2 atoms per lattice pt & a unit cel of edge of 3.569 A
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its time fr u to achive d goal wake up donot hesitate to do hard work |
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3 Apr 2008 12:09:12 IST
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God has given you one face, and you
make yourself another.
~William Shakespeare
You were born an original. Don't die a copy.
~John Mason |
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3 Apr 2008 13:55:25 IST
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bt dear u have taken wrong z..its given 2 atom per lattice point n we knw that in fcc there are 4 atoms perunit cell..so in this case z has to be 8. so jus change the z frm srujana's ans..
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Devendra Kumar Shukla
M.Sc physical Chemistry
Currently working in Daswani classes |
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3 Apr 2008 13:59:01 IST
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Sir, it occurred to me too
but taking Z=8 doesn't agree with the calculated values (3.5 g/cc acc to wiki)
taking Z=2 gives the correct answer
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God has given you one face, and you
make yourself another.
~William Shakespeare
You were born an original. Don't die a copy.
~John Mason |
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3 Apr 2008 16:16:04 IST
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Diamond: Space Group Fd3m face-centered cubic Lattice parameters a = 3.5670 Angstroms Atoms/unit cell 8 Cell volume 45.385 x 10-24cm3 X-ray density 3.5155 g/cm3 How the carbon atoms in diamond are linked together? n dear taking this data i m getting the same density..
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Devendra Kumar Shukla
M.Sc physical Chemistry
Currently working in Daswani classes |
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3 Apr 2008 16:18:02 IST
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Ohk Sir !!!
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God has given you one face, and you
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~William Shakespeare
You were born an original. Don't die a copy.
~John Mason |
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