How do supersaturated solutions demonstrate conservation of energy?
Answers
Answer:
To make a supersaturated solution, usually you have to apply heat to get the excess solute into solution. When the solute precipitates, such heat is evolved.
Explanation:
A supersaturated solution is a solution that contains MORE solute than the amount that would be in equilibrium with undissolved solute. Supersaturation thus describes a metastable, non-equilibrium condition.
To get the excess solute into solution, normally you would have to apply heat to get the solute up. After cooling, when a seed crystal is introduced, this heat is noticeably evolved. Given that the heat put into the system, to dissolve the solute, is evolved when the solid comes out of solution, conservation of energy is satisfied.
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