Which of the following reactions is associated with the lattice energy of RbI (Δ_r)? A) Rb(s) + I₂(g) → RbI(s) B) RbI(s) → Rb⁺(g) + I⁻(g) C) RbI(s) → Rb(s) + I₂(g) D) RbI(s) → Rb⁺(aq) + I⁻(aq) E) Rb⁺(g) + I⁻(g) → RbI(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 component ions in the gas phase. Therefore, the correct reaction associated with the lattice energy of RbI would be the formation of the solid compound from its gaseous ions, which is represented by choice E.

Which of the Following Reactions Is Associated with the Lattice