lattice enthalpy Flashcards
paulings rule 2
In a stable ionic structure, the charge on an ion is balanced by the sum of electrostatic bond strengths to the ions in its coordination polyhedron
. A stable ionic structure must be arranged…..
arranged to preserve Local Electroneutrality
how are replusive forces limited in a coordination polyhedra
Ions in a crystal are surrounded by ions of opposite charge so as not to produce large volumes of similar charge in the crystal
Lattice Enthalpy of dissociation
The standard molar enthalpy change from formation of a gaseous ions from the solid
Lattice Enthalpy of formation
The standard molar enthalpy change from formation of a solid from gaseous ions
how to calculate lattice enthalpy?
the born-mayer formula
born mayer formula
avogardo*[ZaZb]e-^2/4pied0
*
(1-d/d0)A
Madelung constant
Madelung constant is the electrostatic contribution to the energy of the crystal.