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moongazer

  • 3 years ago

What are the three reason why substance dissolve?

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  1. Vincent-Lyon.Fr
    • 3 years ago
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    The solvent weakens the ionic or the covalent bond between the constituents of the solid, separates them, and then carries them away from each other. Look up ionising/dissociating/solvating solvent. Look at second paragraph (Solvents and intermolecular interactions) of the Wikipedia page: http://en.wikipedia.org/wiki/Solvation

  2. Carl_Pham
    • 3 years ago
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    Generally speaking, dissolution may in principle occur for enthalpic reasons, because the created solute-solvent interactions are stronger than the lost solute-solute and solvent-solvent interactions, but this is rare. Much more commonly, solution is entropically drive, meaning it occurs because of the tremendous increase in entropy when a solute is dispersed in the solvent. Finally, in some cases a chemical reaction may occur between the solute and solvent, and the results of the reaction are more soluble than the original solute.

  3. cpm1210
    • 3 years ago
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    1) absorption 2) concentration gradient 3) osmosis or diffusion

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