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    Why are lattice enthalpies found by practical methods different to the theoretical enthalpy found using the born-haber cycle?
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    (Original post by Ben :))
    Why are lattice enthalpies found by practical methods different to the theoretical enthalpy found using the born-haber cycle?
    Theoretical assumes everything is 100% ionic, which isn't typically the case
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    Loss of heat energy released to the environment.

    Inaccuracies in measurement
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    (Original post by Ben :))
    Why are lattice enthalpies found by practical methods different to the theoretical enthalpy found using the born-haber cycle?
    (Original post by samb1234)
    Theoretical assumes everything is 100% ionic, which isn't typically the case
    The theoretical calculation that we do, assumes that the ionic bonds are completely spherical, but in reality, the bonds have a little bit of 'covalent character'. The more covalent character present, the more the enthalpy value that has been calculated (using theory) will vary from the actual enthalpy.
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    (Original post by P____P)
    ...the ionic bonds are completely spherical
    Well, that's complete balls.
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    (Original post by Pigster)
    Well, that's complete balls.
    I see what you did there...
 
 
 
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