Asked by blasting
how do i calculate the volume of a unit cell and volume of atoms within a unit cell for FCC and BCC
Answers
Answered by
DrBo222
What do you have available? You can get at this two or three ways. Do you know the side, a, for them?
Then volume of unit cell = a<sup>3</sup> for both BCC and FCC.
For volume of atoms, look up the formula for volume of a sphere. I think it's (4/3)*pi*r<sup>3</sup>. For BCC, multiply that by 2 because there are two atoms per unit cell. For the FCC, multiply by 4 because there are four atoms per unit cell.
Then volume of unit cell = a<sup>3</sup> for both BCC and FCC.
For volume of atoms, look up the formula for volume of a sphere. I think it's (4/3)*pi*r<sup>3</sup>. For BCC, multiply that by 2 because there are two atoms per unit cell. For the FCC, multiply by 4 because there are four atoms per unit cell.
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