Chemistry help.v lattice enthalpy of dissociation

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emma963
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Given that the lattice enthalpy of dissociation of sodium hydride is +804kJmol^-1.
Would KH be more endothermic (value more positive) as K+ is larger so has a smaller charge density so weaker force of attraction so easier to break?
Last edited by emma963; 1 month ago
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lordaxil
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Easier to break means LESS endothermic (less energy required to break bonds).
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