Rate of Dissolving Solids

Will a solution made by adding 2.5 g of CUSO4 to 10 g of H2O be saturated or unsaturated at 20°C [Pg.323]

The rate at which a solid dissolves is governed by (1) the size of the solute particles, (2) the temperature, (3) the concentration of the solution, and (4) agitation or stirring. Let s look at each of these conditions [Pg.323]

Temperature. In most cases, the rate of dissolving of a solid increases with temperature. This increase is due to kinetic effects. The solvent molecules move more rapidly at higher temperatures and strike the solid surfaces more often, causing the rate of dissolving to increase. [Pg.323]

Surface area of crystals. A crystal 1 cm on a side has a surface area of 6 cm. Subdivided into 1000 smaller crystals, each 0.1 cm on a side, the total surface area is increased to 60 cm. [Pg.323]

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