For example is Formation of Metal Chloride:
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| Figure 1. Hess's Law of Metal Chloride, MCl formation |
Sunday, September 23, 2012
BORN-HABER CYCLE
The Born-Haber cycle is an approach to analyzing reaction energies. It was developed by Max Born and Fritz Haber. This cycle is used as a means of calculating lattice energies which cannot be measured directly. The Born-Haber cycle applies Hess's Law to calculate the lattice enthalpy by comparing the standart enthalpy change of formation of the ionic compound (from the elements) to the enthalpy required to make gaseous ions from the elements.
For example is Formation of Metal Chloride:
From the Hess's Law the lattice enthalpy formation of MCl, (delta)Hf , can be calculated as:
For example is Formation of Metal Chloride:
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