Question

The available space occupied by spheres of equal size in three dimensions in both hcp and ccp arrangement is_____.Explain clearly with process

Answer 1

74%..Bcoz both  hcp & ccp though different in form are equally efficient. They occupy the maximum possible space which is about 74% of the available volume. Hence they are called closest packing..

Hope this will help u.....

Answer 2

Answer:

The available space occupied by spheres of equal size in three dimensions in both hcp and ccp arrangements is: 74%