Question

what is lattice enthalpy?

Answer 1

a measure of the energy contained in the crystal lattice of a compound, equal to the energy that would be released if the component ions were brought together from infinity.

Answer 2

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$\huge\bf\blue{\mid{\overline{\underline{LATTICE\: ENTHALPY :-}}}\mid}$

✿ 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 .

✿ This process involves both the attractive force between ions of opposite charges and the repulsive forces between ions of like charge .

✿ The solid crystal being three-dimensional ;It is not possible to calculate lattice enthalpy directly from the interaction of forces of attraction and repulsion only .

✿ Factors associated with the Crystal geometry have to be included .