Lattice enthalpy/energy

Lattice enthalpy/energy

This is the name given to the enthalpy change for the reaction in which 1mole of crystalline solid is formed from its component ions in the gaseous phase.

Na⁺(g) + Cl^–(g) → NaCl(s)  ∆H_m^Ө(298K) = -788 kJmol^-1

 Factors affecting the magnitude of lattice energy

• Size of the ion; small ions have strong interionic attraction causing high lattice energy
• Charge on the ions: ions with big charge have strong interionic attraction leading to high lattice energy.

Please Subscribe to promote this website. Subscription is free

Share with a friend

Your comment is valuable

Thank you so much