Question

Increasing the surface area of solute increase the rate rate of dissolution because

Answer 1

Increasing the surface area of a solute increases the rate of dissolution because it allows more particles of the solute to come into contact with the solvent at the same time. When a solute is in a solid form, only the outer surface of the particles is exposed to the solvent. By increasing the surface area—such as by grinding the solute into a powder or breaking it into smaller pieces—you expose a greater area of the solute to the solvent.

As more solute particles are accessible to the solvent, more solute can dissolve into the solvent more quickly, leading to a higher rate of dissolution. This process is also influenced by factors such as temperature and agitation; however, the primary reason increasing surface area enhances the rate of dissolution is the increased number of interactions between solute and solvent molecules.