Why does crushing solid reactants increase the rate of reaction?

If a reactant is a solid, grinding it into smaller particles will increase the surface area. The more surface area on which collisions can occur, the faster the reaction. Catalysts lower the activation energy of a chemical reaction and increase the rate of a chemical reaction without being consumed in the process.

Do liquids react faster than solids?

Gases tend to react faster than liquids and liquids react much faster than solids. Catalysts work by helping the reactant particles come together in the right orientation for reaction and by lowering the energy required for the reaction to occur.

How does the surface area of a solid reactant affect the rate of reaction?

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. the rate of reaction increases.

What has the greatest effect on reaction rate?

Temperature
Temperature. Raising the temperature of a chemical reaction usually results in a higher rate of reaction. When the reactant particles are heated, they move faster and faster. This results in a greater frequency of collisions.

Why does increasing the concentration of an aqueous reactant increase the rate of a reaction?

Aqueous solutions typically have their concentrations expressed in mol/L. In terms of the collision theory, increasing the concentration of a reactant increases in the number of collisions between the reacting species per second and therefore increases the reaction rate.

Why does grinding a solid into a powder increase reaction rate?

grinding the reactants into a powder increases the surface area where reactions can take place, increasing the frequency of collisions and as a result, increasing the rate.

How nature of reactants affect the rate of reaction?

When the concentration of the reactants increases, the frequency of the molecules colliding increases, striking each other more frequently. Increasing the amount of one of more reactants causes the collusions to happen more often, increasing the rate of reaction.

Do solids react faster than gases?

Gases tend to react faster than solids or liquids: It takes energy to separate particles from each other.

How does surface area affect the rate of evaporation?

Effect of the Surface area: Evaporation increases with the increase in surface area. It is because, the larger the surface area that is exposed to air, the more molecules will escape into the air. This makes the molecules escape faster.

How will the rate of reaction be affected when 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.

How does an increase in concentration of reactant increase the reaction rate?

Increasing the concentration of reactants generally increases the rate of reaction because more of the reacting molecules or ions are present to form the reaction products. When concentrations are already high, a limit is often reached where increasing the concentration has little effect on the rate of reaction.