Why dry raisins placed in water swell up ?
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They are dried out grapes - soaking them enables them to retain water (rehydrate), yet this won't return them to their usual size, simply kind of "plump them up" a bit. They will even now be sweet.
The reason behind why they swell up is a direct result of the endosmosis. The grouping of solutes in raisins is more than outside so water moves inside the raisin bringing about swelling in it.
Raisin shrink in concentrated saline water due to exosmosis. As the grouping of solute is more outside that is in saline water when contrasted with raisin, so it loses water and shrinks to accomplish balance.
The reason behind why they swell up is a direct result of the endosmosis. The grouping of solutes in raisins is more than outside so water moves inside the raisin bringing about swelling in it.
Raisin shrink in concentrated saline water due to exosmosis. As the grouping of solute is more outside that is in saline water when contrasted with raisin, so it loses water and shrinks to accomplish balance.
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