Table of Contents
How does the amount of reactant affect the rate of reaction?
Reactant concentration. Increasing the concentration of one or more reactants will often increase the rate of reaction. This occurs because a higher concentration of a reactant will lead to more collisions of that reactant in a specific time period.
Does size of reactants affect reaction rate?
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.
What factors impact the rate of a 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.
How does removing a reactant affect the rate of reaction?
For any chemical reaction at equilibrium, Adding reactant(s) or removing product(s) causes the equilibrium to shift to the right, toward products. Removing reactant(s) or adding product(s) causes the equilibrium to shift to the left, toward reactants.
Which of the following 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.
Why do increasing the concentration of reactants increase the rate of a reaction Brainly?
For a chemical reaction to occur, there must be a certain number of molecules with energies equal to or greater than the activation energy. With an increase in concentration, the number of molecules with the minimum required energy will increase, and therefore the rate of the reaction will increase.
What is the effect of a change in the amount of a reactant or product on a chemical reaction initially at equilibrium?
If a chemical reaction is at equilibrium and experiences a change in pressure, temperature, or concentration of products or reactants, the equilibrium shifts in the opposite direction to offset the change.
Which of the following factors are affected by an increase in reactant concentration?
The higher the concentration of reactants, the faster the rate of a reaction will be. 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.
What will not increase the rate of a reaction?
The catalyst can be used for the effective increase of the reaction speed. But the increase of activation energy cannot increase the rate of a reaction. Only the lower activation energy can increase the reaction rate.
What happens if reactant is removed?
If we add product, equilibrium goes left, away from the product. If we remove product, equilibrium goes right, making product. If we remove reactant, equilibrium goes left, making reactant.