Which of the following reactions is associated with the lattice energy of MgO (ΔH°_latt)? A) Mg(s) + O(s) → MgS(s) B) MgS(s) → Mg(s) + O(s) C) Mg²⁺(aq) + O²⁻(aq) → MgO(s) D) Mg²⁺(g) + O²⁻(g) → MgO(s) E) MgO(s) → Mg²⁺(aq) + O²⁻(aq)

Question

Quizplus · Accepted Answer

The reaction associated with the lattice energy of MgO is the formation of MgO from its constituent elements in the gas phase. This is represented by the equation: Mg(s) + 1/2O2(g) → MgO(s). Option D represents this process but with Mg and O as ions instead of atoms.

Which of the Following Reactions Is Associated with the Lattice