How does the surface area of solid reactants affect the reaction rate?

How does the surface area of solid reactants affect the reaction rate?

If the surface area of a reactant is increased: more particles are exposed to the other reactant. there is a greater chance of particles colliding, which leads to more successful collisions per second.

Why is the rate of reaction affected by surface area change?

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.

How does the surface area of particle size affect the reaction rate?

Surface Area / Particle Size Breaking the reactant into smaller pieces increases the surface and more particles are exposed to the reaction mixture. This results in an increased frequency of collisions and therefore a faster rate of reaction.

Does rate of reaction depend on surface area?

Rate of reaction depends upon surface area of reactants. By increasing the surface area of reactant, rate of reaction increases due to greater contact between individual particles and also due to the fact that the surface molecules reacts more quickly.

What are the factors that affect the rate of reaction?

The factors that affect reaction rates are:

• surface area of a solid reactant.
• concentration or pressure of a reactant.
• temperature.
• nature of the reactants.
• presence/absence of a catalyst.

Why does decreasing particle size increases the rate of reaction?

Decreasing the size of the particles, which make up a given weight, will increase the number of particles represented by the same weight. Smaller particle size results in an increase in the rate of reaction because the surface area of the reactant has been increased.

Why do smaller particles have larger surface area?

It means that the surface area to volume ratio increases as the radius of the sphere decreases and vice versa. Therefore, materials made of nanoparticles have a much greater surface area per unit volume ratio compared with the materials made up of bigger particles.

How will the rate of the reaction be affected when a surface area of the reactant is reduced?

When solids and liquids react, increasing the surface area of the solid will increase the reaction rate. A decrease in particle size causes an increase in the solid’s total surface area. The reaction rate decreases with a decrease in temperature.

Which factor does not affect the rate of reaction?

Nature and concentration of the reactants and temperature of the reaction influence the rate of reaction. But molecularity does not affect the rate of reaction as it includes the number of atoms, ions or molecules that must collide with one another to result into a chemical reaction.