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Write the Born-Haber cycle for NaCl. |
Answer» Solution : When U= Littice energuy `: Delta H_(s)` = Enthaply of SUBLIMATION,= Enthalpy of ionization, `Delta H_(4)=` enthalpy of dissociatio, `Delta H_(i)=DeltaH_(EA)` enthalpy for ELECTRON affinity. The only one step form formation of NaCl from sodium cholorine is associated with the energy called `Delta H_(f)` = = enthalpy of formation. `:. Delta H_(f)= U+DeltaH_(s)+DeltaH_(i)+DeltaH_(d)DeltaH_(Ea)` `:.` Lattice energy `U=DEltaH_(f)=[DeltaH_(s)+DeltaH_(i)+DeltaH_(d)+DeltaH_(Ea)]` |
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