Chemistry · CHEMICAL BONDING AND MOLECULAR STRUCTURE

Which of the following statements strictly describes the definition of the lattice enthalpy of an ionic compound?

1. The energy change accompanying the dissolution of one mole of ionic solid in an infinite volume of water.
2. The energy released when one mole of gaseous neutral atoms is converted into gaseous ions.
3. The energy required to completely separate one mole of a solid ionic compound into gaseous constituent ions.
4. The electrostatic attraction energy between neutral atoms forming a crystalline solid.