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(a) Compare the packing efficiency of square close packing, hexagonal close packing and cubic close packing. (b) Give the values of packing efficiency in (i) hcp or ccp and (ii) body-centred cubic crystals. |
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Answer» Solution :(a) PACKING efficiencies of HCP and ccp are identical, but the packing efficiency of square close packing is smaller. (B) Packing efficiency of hep or ccp `= 74%` Packing efficiency of body-centred CUBIC `= 68%` |
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