What factors affect the rate of reaction GCSE?
There are four factors that affect the rate (speed) of a chemical reaction:
- particle size.
- use of a catalyst.
What are 3 factors that affect rates of reactions?
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 factors affecting rate of reaction?
Which are the factors affect the rate of chemical reaction?
There are five general properties that can affect the rate of a reaction:
- The concentration of the reactants. The more concentrated the faster the rate.
- Physical state of reactants.
- The presence (and concentration/physical form) of a catalyst (or inhibitor).
What factors affect a reaction rate?
The rate of a chemical reaction is influenced by many different factors, including reactant concentration, surface area, temperature, and catalysts.
Which does not affect the rate of reaction?
Physical state of the reactant.
What are four factors that affect the rate of a chemical reaction quizlet?
Terms in this set (20)
- Nature of Reactants.
- Surface Area (more = faster)
- Temperature (higher = faster)
- Concentration (larger = faster)
- Catalyst (present = faster)
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.
What are the factors that affect the rate of reaction?
Factors such as concentration, pressure, temperature, surface area and addition of a catalyst affect reaction rate. Just placing two different molecules together doesn’t necessarily mean a reaction will happen.
How is surface area related to reactant rate?
This is done by cutting the substance into small pieces, or by grinding it into a powder. Compared to a reaction with lumps of reactant, the graph line for the same reaction but with powdered reactant:
How is the speed of a chemical reaction determined?
The speed of a chemical reaction is affected by temperature, concentration, particle size and the presence of a catalyst. It can be calculated by measuring changes in reactants/products. Factors affecting reaction rate. For a reaction to occur, the particles that are reacting must collide with each other.
How does the surface area of a catalyst change?
A catalyst changes the rate of reaction but is unchanged at the end of the reaction. The rate of a chemical reaction can be raised by increasing the surface area of a solid reactant. This is done by cutting the substance into small pieces, or by grinding it into a powder.