alleryWhy can lattice enthalpy not be calculated directly from attraction and repulsion alone?
AThe crystal is tightly defended
BThe crystal is three dimensional
CThe crystal is thermally divided
DThe crystal is thinly distributed
Answer & Solution
Correct answer: B. The crystal is three dimensional
1. Each ion interacts with many neighbours at once.
2. Those neighbours lie in every direction.
3. The solid crystal being three dimensional, lattice enthalpy cannot be calculated directly from those forces alone.
4. So the answer is the crystal is three dimensional.
_Source: syllabus Chemistry Part I, Unit 4 'Chemical Bonding and Molecular Structure'_
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