By breaking up the solid, you are creating more surface area. Therefore, increasing the surface area will speed up dissolution.
Dissolving takes place at the surface of the solid, increasing the surface area allows more solvent to come into contact with more solid solute. Therefore, speed of the dissolving process increases.
The rate of dissolution of a solid is dependent on the surface area reaction. By crushing the cube, the surface area is greatly increased, thus increasing the rate of dissolution.
Makes it bigger.
The act of crushing a solid serves to increase the surface area that is exposed to the solvent. The greater the surface area, the faster will be the dissolving process.
Not usually size, its the surface area
When the surface area is higher, it helps to dissolve it in the solution faster.
Make it rougher. Any deviation from a smooth sphere increases the surface area.
increasing the surface area of reactants in a solid form the speed of reaction is increased the contact between the solid reactants or liquids and gas.
The powdered solid has a greater surface area than the single lump of solid. So the larger the surface area of the solid, the faster the reaction will be. Increasing the surface area of the solid increases the chances of collision taking place between the molecules of reactants, if it is a reaction in liquid or gaseous phase.
ALL reactions (apart from Nuclear) take place on the surface. By crushing the solid you are increasing the surface area and also the SA/Volume ratio. This increased surface area increases the area available for the dissolution reaction.