Chemistry / Chem 1520 · Atom · ~20 seconds
The Dissolution Process
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Dissolving a solute means replacing solute-solute and solvent-solvent attractions with new solute-solvent attractions, favorable only when those can compete.
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Table salt dissolves in water because strong ion-dipole attractions to Na+ and Cl- compete successfully against the ionic lattice.
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Dissolution is a competition between old and new attractions, not passive mixing — some pairs never form a stable solution.