Question

Dipole relaxation of 1 molar nacl is higher or lower than licl

Answer 1

This increase in size means that the oppositely charged ions in KCl are further part than those in NaCland therefore it takes less energy to break up the ionic bond in KCl which we see as a reduction in the melting point. Technically the lattice energy in KCl is lowerbecause of the larger size of the potassium ion.