Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • Can someone explain Percent of vacant space in FCC unit cell is

Percent of vacant space in FCC unit cell is

  • Option 1)

    32

  • Option 2)

    26

  • Option 3)

    52

  • Option 4)

    74

 

Answers (1)

best_answer

Packing efficiancy in FCC unit cell

=\frac{4\times \frac{4}{3}\pi r^{3}}{\left ( 2\sqrt{2}r \right )^{3}}=0.74

% of packing efficiency =0.74\times 100=74%

Percent of vacant space =100-74=26%

 

Packing fraction for face centered cubic unit cell -

Pf = 0.74

-

 

 


Option 1)

32

This is incorrect

Option 2)

26

This is correct

Option 3)

52

This is incorrect

Option 4)

74

This is incorrect

Posted by

Aadil

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

BTech aspirant from north-east or UT? Apply for CSAB NEUT counselling 2025 today
anam-khan

JoSAA round 2 cut-off 2025 out; BTech closing ranks for top engineering courses at IITs
anam-khan

Goa Engineering Admission 2025: 1,415 eligible for BE seats; merit list on June 27

Latest Question