Difference between dissolved and dispersed in solution
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A solution is a mixture of one substance DISSOLVED in another substance. It has a solute and a solvent. Sugar in water would be an example of a solution.
A dispersion is a mixture of one substance PHASE SEPARATED from another substance. They phase separate because they DO NOT dissolve with each other. For example if I took oil and water and shook it really hard I would have a dispersion of oil in water. A better (more stable) example is milk. The fatty (white parts) of the milk don't actually dissolve in water. But they can exist in water as globules of fat DISPERSED in the water. To us it looks like a continuous solution of one color but at the scale of molecules you would see little globs of fatty compounds DISPERSED throughout the water.
A dispersion is a mixture of one substance PHASE SEPARATED from another substance. They phase separate because they DO NOT dissolve with each other. For example if I took oil and water and shook it really hard I would have a dispersion of oil in water. A better (more stable) example is milk. The fatty (white parts) of the milk don't actually dissolve in water. But they can exist in water as globules of fat DISPERSED in the water. To us it looks like a continuous solution of one color but at the scale of molecules you would see little globs of fatty compounds DISPERSED throughout the water.
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Basically the answer lies in the school book definitions of solution, colloid and suspension. The difference lies in the size of solute in the solvent. Eg. a sugar molecule due to its small size can form a solution, while a single walled CNT, a single molecule (not a cluster), but still can't form a solution with anything, due to its size. In short, dissolution is in a solution, while dispersion is in a colloid or a suspension.
Explanation:
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