Calculate packing efficiency of edge centred unit cell
Drishti , 3 Years ago
Grade 12
1 Answers
Priyanshu Gujjar
Last Activity: 3 Years ago
In the same way, the relation between the radius 'r' and edge length of unit cell 'a' is r = 2a and the number of atoms is 6 in the HCP lattice. Packing efficiency can be written as below, Packing efficiency = Volume occupied by 6 spheres ×100 / Total volume of unit cells. 6 × 4 / 3 π r3 / (2 r)3 × 100% = 74.05%
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