Which change of state involves a release of energy?
2 answers:
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Answer:
The fraction of the available octahedral positions are filled with ions is
Explanation:
If there are n numbers of spheres in HCP in packing:
Number of octahedral void = n
Number of tetrahedral void = 2n
Total number of voids = n + 2n = 3n
The crystal structure consists of an HCP arrangement of
ions.
Number of spheres in HCP = 6
Number of = 6
Number of octahedral voids = 6
Number of tetrahedral void = 12
Number of aluminum ions when there are 6 ion =
Number of voids in which ions are present = 4
The fraction of the available octahedral positions are filled with ions =