Lattice Enthalpy

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Lattice enthalpy is the enthalpy change that accompanies the formation of one mol of an ionic compound from its gaseous ions under standard conditions
lattice enthalpy is from gaseous ions to ionic lattice compound
lattice enthaply is exothermic so enthalpy change is negative and arrow points down on the born-haber cycle
LE cannot be measured directly and so has to be calculated indirectly from known energy changes in an energy cycle
the enthalpy change of formation is exothermic
lattice enthalpy is exothermic
when its exothermic, enthalpy change is negative and the arrow on cycle points down

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Lattice Enthalpy

Cards (7)

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OCR A-Level Chemistry

5.3.2 Entropy changes

5.3 Enthalpy, Entropy and Free Energy

5.5 Transition Elements

8.1 Enthalpy Changes

5.3.3 Gibbs free energy

5.5.1 Properties of transition metals

5.5.3 Precipitation reactions

3.4 Enthalpy Changes

6.6 Enthalpy of Formation

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8.1.2 Measuring Enthalpy Changes

5.5.2 Ligand substitution reactions

8.1.1 Standard Enthalpy Changes

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