The interlunio distances of several alkali halide crystals
Chapter 12, Problem 110AP(choose chapter or problem)
Problem 110AP
The interlunio distances of several alkali halide crystals are as follows:
Crystal |
NaCl |
NaBr |
NaI |
KCl |
KBr |
KI |
Interionic |
282 |
299 |
324 |
315 |
330 |
353 |
Distance(pm) |
|
|
|
|
|
|
Plot lattice energy versus the reciprocal interionic distance. How would you explain the plot in terms of the dependence of lattice energy on the distance of separation between ions? What law governs this interaction? (For lattice energies, sec Table 8.1.)
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