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Born Haber Cycle

The term "Born Haber Cycles" refer to energy cycles which are drawn out to show the steps involved for the formation of ionic compounds.

A variety of different Enthalpy types are involved in the process of Bron Haber Cycles. Check them out HERE:

Born Haber Defintion

Enthalpy Change of formation of sodium chloride: Born Haber Cycle

KEY POINT....

The large Lattice Enthalpy, is mainly responsible for the endothermic processes, it also causes the negative enthalpy value of the formation of ionic compounds

Lattice Enthalpy

Lattice Enthalpy linked to either endothermic process of converting a crystalline solid into its gaseous ions OR to the exothermic process where the gaseous ions are converted into a crystalline solid.

 

MX (s) (↔)m + (g) + X (-) (g)

 

Lattice enthalpy sign indicator of whether lattice bons are being broken (-) or formed (+)

 

Lattice enthalpy sie is ependent on the size of teh ions and on the charge carried by the ions. The greater the charge, the smaller the ion and the higher the value of the lattice enthalpy.

Lattice Enthalpy = f - (A+ B + C + D

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