- surface area of a solid reactant.
- concentration or pressure of a reactant.
- temperature.
- nature of the reactants.
- presence/absence of a catalyst.
What are the 4 factors that affect the rate of reaction quizlet?
- Temperature. The kinetic energy of molecules, which in turn move more rapidly and collide more forcefully.
- Concentration of reacting particles. the umber of collisions because of increased numbers of reacting particles.
- Particle size. …
- Presence of catalysts.
What are 5 factors that affect reaction rate?
Five factors typically affecting the rates of chemical reactions will be explored in this section:
the chemical nature of the reacting substances
, the state of subdivision (one large lump versus many small particles) of the reactants, the temperature of the reactants, the concentration of the reactants, and the …
What are the 4 factors that affect the rate of reaction PPT?
The rate of reaction is the speed at which a reaction proceeds. The factors that affect the rate of a chemical reaction are :
nature of reactants, temperature, concentration, size of particle and catalyst
.
What are 4 ways to increase the rate of a reaction?
- Increase the concentration of a reactant.
- Increase the temperature of the reactants.
- Increase the surface area of a reactant.
- Add a catalyst to the reaction.
What are the 5 ways to increase rate of reaction?
- Heat it up to speed it up: increasing temperature. …
- The opposite of social distancing: increasing concentration or pressure to increase reaction speed. …
- Divide and conquer: decreasing particle size to increase reaction speed. …
- Pro gamer move: dropping a catalyst.
How can you speed up a reaction?
- Increase the temperature in Endothermic reactions (Reactions that absorb energy, or become cold)
- Decrease the temperature in Exothermic reactions (Reactions that release energy, or become hot)
- Add a catalyst (A substance that reduces activation energy, speeding up the reaction)
What are the four factors that will increase the rate of reaction choose 4 answers?
Reactant concentration, the physical state of the reactants, and surface area, temperature, and the presence of a catalyst
are the four main factors that affect reaction rate.
What are the 5 factors that affect the rate of reaction quizlet?
- Nature of Reactants.
- Surface Area (more = faster)
- Temperature (higher = faster)
- Concentration (larger = faster)
- Catalyst (present = faster)
What increases the rate of a chemical reaction?
In general,
increasing the concentration of a reactant in solution
, increasing the surface area of a solid reactant, and increasing the temperature of the reaction system will all increase the rate of a reaction. A reaction can also be sped up by adding a catalyst to the reaction mixture.
What does not affect rate of reaction?
So if you have a reaction order of Zero (i.e., s+t=0), this basically means that
the concentration of the reactants
does not affect the rate of reaction. You could remove or add reactants to the mixture but the rate will not change.
Which best defines reaction rate?
Reaction rate, in chemistry,
the speed at which a chemical reaction proceeds
. It is often expressed in terms of either the concentration (amount per unit volume) of a product that is formed in a unit of time or the concentration of a reactant that is consumed in a unit of time.
Which one 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.
On what factors rate of reaction depends?
Reactant concentration, the physical state of the reactants, and surface area, temperature, and the presence of a catalyst
are the four main factors that affect reaction rate.
Does the rate of reaction proceed at a steady rate?
Reactions do not proceed at a steady rate
. They start off at a certain speed, then get slower and slower until they stop. As the reaction progresses, the concentration of reactants decreases. This reduces the frequency of collisions between particles and so the reaction slows down.
What is the effect of temperature on rate of reaction?
If the temperature is raised, the kinetic energies of both A and B are increased so that there are more collisions per second, and a greater fraction of these will lead to chemical reaction. The rate, therefore, generally increases with
increasing temperature
.
