Which of the following reactions is associated with the lattice energy of Li₂O (ΔH°_latt)? A)Li₂O(s)→ 2 Li⁺(g)+ O²⁻(g) B)2 Li⁺(aq)+ O^2⁻(aq)→ Li₂O(s) C)2 Li⁺(g)+ O^2⁻(g)→ Li₂O(s) D)Li₂O(s)→ 2 Li⁺(aq)+ O²⁻(aq) E)2 Li(s)+ O₂(g)→ Li₂O(s)

Question

Quizplus · Accepted Answer

The lattice energy of an ionic compound is the energy required to separate one mole of the solid into its gaseous ions. Choice C shows the formation of Li₂O from its ions in the gaseous phase, which represents the process of lattice energy. The other choices represent either the formation of the compound from its constituents in different phases or reactions unrelated to lattice energy.

Which of the Following Reactions Is Associated with the Lattice