Kclkcl has a lattice energy of −701 kj/mol.−701 kj/mol. consider a generic salt, abab , where a2+a2+ has the same radius as k+,k+, and b2−b2− has the same radius as xl−.xl−. estimate the lattice energy of the salt abab .

Explanation:

It is given that lattice energy is -701 kJ/mol.

Whereas it is known that realtion between lattice energy and radius is as follows.

               Lattice energy

where,           = +2,    and = -2

Therefore, lattice energy of AB =

                                                    =

                                                    = -2804 kJ/mol

Thus, we can conclude that lattice energy of the salt ABAB is -2804 kJ/mol.

16

explanation:

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