Question

Which of the following reactions is associated with the lattice energy of MgSe (ΔH°latt)?

Mg(s) + Se(s) → MgS(s)
Mg2⁺(g) + Se2⁻(g) → MgSe(s)
Mg2⁺(aq) + Se2⁻(aq) → MgSe(s)
MgS(s) → Mg(s) + Se(s)
MgSe(s) → Mg2⁺(aq) + Se2⁻(aq)

Answer 1

Answer: Mg2⁺(g) + Se2⁻(g) → MgSe(s)

Explanation: This response includes the arrangement of one mole of MgSe(s) from its constituent vaporous particles, and the discharge of cross section vitality. The other responses recorded don't include the arrangement of MgSe from its constituent particles within the gas stage, so they are not related with the grid vitality of MgSe.