Question

Void fraction of ABC ABC in three
dimensional packing is-
(1) 76%
(2) 32%
(3) 47.6%
(4) 26%​

Answer 1

Answer:

76% I'd the please mark as brainliest

Answer 2

Answer:

In three dimensional packing, void percentage of ABCABC.... will be 26%.

Therefore the option (4) is correct.

Explanation:

• Voids is the empty space in the three dimensional close packing where no lattice point (atoms, ions) is present.
• The arrangement ABCABC... is found in CCP (cubic close packing) or FCC (face centered cubic). The packing efficiency of FCC unit cell is 74%.

Therefore, void percentage in ABCABC... arrangement = 100-74 = 26%

Void fraction in three dimensional packing = 0.26