January 15, 2025, 03:57:29 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: crystallization  (Read 3784 times)

0 Members and 1 Guest are viewing this topic.

Offline kimi85

  • Full Member
  • ****
  • Posts: 133
  • Mole Snacks: +0/-12
crystallization
« on: June 25, 2007, 04:29:23 AM »
Is there a formula which can be used to calculate the distance between centers of neighboring spheres?

I have this problem and I don't know how to come up with the correct answer.

At 1425 degree Celsius Fe crystallizes in a body-centered cubic lattice whose edge length is 2.93 A.  Assuming the atoms to be packed spheres.

The correct answer is 2.54 A.

Thank you. :)
Logged

Offline AWK

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7976
  • Mole Snacks: +555/-93
  • Gender: Male
Re: crystallization
« Reply #1 on: June 25, 2007, 04:44:44 AM »
Main cube diagonal = two spheres = 4 radii of spheres
You need a half of the diagonal
Logged
AWK

Offline kimi85

  • Full Member
  • ****
  • Posts: 133
  • Mole Snacks: +0/-12
Re: crystallization
« Reply #2 on: June 25, 2007, 04:53:29 AM »
So, should I divide the edge length by 2?
Logged
Pages: [1]   Go Up
« previous next »
Sponsored Links