EVERYDAY SCIENCE

Detailed explanation-1: -Increasing the surface area of a reactant increases the frequency of collisions and increases the reaction rate. Several smaller particles have more surface area than one large particle. The more surface area that is available for particles to collide, the faster the reaction will occur.

Detailed explanation-2: -Specific Surface Area and Particle Size The relationship between the particle size and surface area. The specific surface area increases with decreasing particle size. The specific surface area is also increased if the particle has pores.

Detailed explanation-3: -Smaller particle size results in an increase in the rate of reaction because the surface area of the reactant has been increased.

Detailed explanation-4: -By decreasing the particle size of a reactant, we are increasing its surface area. The greater the surface area, the higher the chance of collisions, thus the faster the rate of reaction. The smaller the particle size the faster the reaction.

Detailed explanation-5: -Particle Size A third factor that affects the rate of dissolving is the size of solute particles. For a given amount of solute, smaller particles have greater surface area. With greater surface area, there can be more contact between particles of solute and solvent.