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Precipitates and entropy

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jgalt42

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When solutions precipitate something, does this decrease the entropy of the system? If so, why?
 

loveoforganic

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Entropy decreases because you're increasing the order of the system - you have essentially pure water and pure crystals as opposed to ions floating all through a solution. This is analagous to gas molecules all occupying one side of a chamber vs. the entire chamber.
 
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