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Rate of Dissolving

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Rate of Dissolving

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The dissolving of a solid by water depends on the collisions that occur between the solvent molecules and the particles in the solid crystal. How does energy play into the process of dissolving? How can we change the rate of dissolving?

Surface Area

The rate at which a solute dissolves depends on the size of the solute particles. The more surface area of the solute exposed, the more surface there is for collisions to occur!


Dissolving sugar in water will occur more quickly if the water is stirred. why is this? Will the amount of solute that dissolves change if you stir the solution?


Heating up a solvent increases the kinetic energy of molecules. How does this energy affect the speed of molecules? Does a temperature change affect the amount of solute that dissolves?

To check your answers and find more information on dissolving rates, click here.

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