Question

Lattice enthalpy of an ionic compound depends upon:

• A. size of ion
• B. charge on ion
• C. charge density
• D. all of the above

Answer 1

The correct option is D all of the above

Lattice enthalpy is a measure of the strength of the forces between the ions in an ionic solid. The greater the lattice enthalpy, the stronger the forces.
An estimate of the strength of the bonds in an ionic compound can be obtained by measuring the lattice energy of the compound, which is the energy given off, when oppositely charged ions in the gas phase come together to form a solid.
Hence, lattice enthalpy of an ionic compound depends upon size of ion, charge on them, and their charge density.