![]() ![]() We begin by writing the formation reaction, which is by definition from the elemental states at "C"# and #"1 atm"#: The Born-Haber cycle takes advantage of the state function property of the change in enthalpy to indirectly determine the lattice energy of ionic compounds through processes that utilize known thermodynamic quantities like ionization energy and electron affinity. By definition, the gaseous cation and anion forming the corresponding ionic compound release energy termed the lattice energy, the energy contained within the lattice structure.įor an alternative explanation, see here.
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