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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: Solid state
Forum Index -> Physical Chemistry like the article? email it to a friend.  
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ananth_patri (595)

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What is the diff between hexagonal closed packing(hcp) and body centered cubic arrangement(bcc)??? ??Please answer me as fast a s possible............

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ananth_patri (595)

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wILL ANY ONE HELPPMEEEEEE..........

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sumansumitha (30)

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HCP's packing efficiency is 74%.
and BCC's pcaking efficiency is 68%

the no.atoms in each unit cell in hcp or ccp=4
but in bcc=2

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vishy_1990 (20)

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In hcp the packing,the effeciency is a bit higher than the BCC.
1.the no of atoms in bcc is 2 while those in hcp in 4
2.the effeciency of the crystal of bcc is 6% less when compared to that of hcp
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