Question

define lattice enthalpy?​

Answer 1

Explanation:

It is defined as the heat of formation for ions of opposite charge in the gas phase to combine into an ionic solid. As an example, the lattice energy of sodium chloride, NaCl, is the energyreleased when gaseous Na+ and Cl–ions come together to form a lattice of alternating ions in the NaCl crystal.

Answer 2

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$\Large\bold\blue{Lattice\:enthalpy}$

The lattice enthalpy of an ionic solid is defined as the energy required to completely separate one mole of a solid ionic compound into gaseous constituent ions.