Chapter 8, Problem 8.120QP

Calculate ΔH for the following process:

$\text{K}(g)+\text{Br}(g)\to \text{KBr}(s)$

The lattice energy of KBr is 689 kJ/mol, and the ionization energy of K is 419 kJ/mol. The electron affinity of Br is given in Table 8.4. See Problem 8.119.