CHE $3260$ Problem Set #$4$ X$-$ray Diffraction

$2$ whes. from tocay

While collecting an X$-$ray diffraction pattern for KI crystals, you see a peak at $24\mathrm{.}91$ degrees two theta with a peak width $($full width at half$-$max$)$ of $0\mathrm{.}5$ degrees when you use CuK$x-$rays.

Compute the d$-$spacing of the peak.

Compute the diameter of the KI crystals.

How would the hardness and brittleness of the KI ceramic be affected if the crystals were four times the diameter you calculated in #$2?$

Is there bonding in the $(020)$ plane for KI$?$ Explain your answer.

Determine the five families of planes in each of the following crystal systems that would have the longest $d-$spacings.

A$)$ simple cubic

B$)$ body$-$centered cubic

C$)$ face$-$centered cubic

Calculate the lattice spacing, of d$-$spacing, for the $(020)$ plane of KI$.$