The lattice energy of an ionic crystal is the enthalpy of:
Correct answer: D. Formation
- A. Combustion
- B. Dissociation
- C. Dissolution
- D. Formation
Explanation
The lattice energy of an ionic crystal is the energy released when separate gaseous ions are combined to form a solid ionic compound. It is a measure of the strength of the ionic bonds in the crystal. The formation of an ionic compound is an exothermic process, meaning that it releases energy, which is reflected by the negative sign of the lattice energy. The higher the magnitude of the lattice energy, the stronger the ionic bonds, and the more stable the crystal.
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About Lattice Energy
Lattice energy describes the energy released when gaseous ions form one mole of an ionic solid, or the energy required to separate that solid into gaseous ions, depending on the convention used. Its value depends mainly on ionic charge and radius and is calculated through Born-Haber cycles.
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