What are 3 factors that affect the rate speed of reactions?

What are 3 factors that affect the rate speed of reactions?

The rate of a chemical reaction is influenced by many different factors, including reactant concentration, surface area, temperature, and catalysts.

What factors can speed up or slow down a reaction?

There are several factors that affect the speed of a reaction:

• Nature of the reactants.
• Particle size of the reactants.
• Concentration of the reactants.
• Pressure of gaseous reactants.
• Temperature.
• Catalysts.

What will increase the speed at which a reaction takes place?

If the temperature increases, the molecules speed up. They are more likely to bump into each other and with greater energy, so the reaction occurs faster. A catalyst increases the rate by lowering the activation energy. More collisions then have enough energy to cause a reaction.

What are three things you could do to make the reaction occur more quickly?

Increase concentration. This increases the number of collisions. The more collisions per second, the faster the reaction.

Increase temperature. This increases the number of collisions because the molecules are moving faster.

Use a catalyst. A catalyst lowers the barrier to the reaction.

How do you slow down the rate of a reaction?

How can we speed up or slow down a reaction?

1. The rate of a chemical reaction can be speeded up or slowed down by changing the temperature.
2. Other ways of changing the rate of the Chemical Reactions are, by stirring them and/or changing the size or concentration of the reactants.

Why would you want to slow down a reaction?

A chemical reaction is taking place between two reactants dissolved in a liter of water. We often want to decrease the rates of certain reactions rather than speeding them up. For example, to prolong the shelf lives of certain foods, the chemical reactions by which they spoil must be slowed down.

What are three ways to slow down a chemical reaction?

Also, if Page 3 more particles are available to react, the reaction will happen faster. To slow down a reaction, you need to do the opposite. Factors that can affect rates of reactions include surface area, temperature, concentration, and the presence of catalysts and inhibitors.

What are 4 things that will speed up or slow down a chemical reaction?

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 5 ways can you speed up or slow down a 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.
• Temperature.
• Physical state of reactants.
• The presence (and concentration/physical form) of a catalyst (or inhibitor).
• Light.

What are the factors that affect the speed of a chemical reaction?

Factors affecting the speed of chemical reaction. The factors affecting the speed of the chemical reaction are the nature of the reactants, the reactants concentration, the reaction temperature, and Catalyst, The speed of a chemical reaction can be measured virtually by the disappearance rate of reactants or the rate of appearance of resultants.

How can temperature speed up or slow down a reaction?

Faster-moving molecules and atoms collide more frequently and therefore can form new substances more quickly. For example, the high temperature inside an oven speeds up the chemical reations that change liquid batter into a cake.

How does a catalyst speed up a chemical reaction?

Catalysts speed up chemical reactions. Only very minute quantities of the catalyst are required to produce a dramatic change in the rate of the reaction. This is really because the reaction proceeds by a different pathway when the catalyst is present essentially lowering the activation energy required for the reaction to take place.

How does the concentration of reactants affect the reaction rate?

Factors That Affect the Chemical Reaction Rate. 1 Concentration of Reactants. A higher concentration of reactants leads to more effective collisions per unit time, which leads to an increased reaction 2 Temperature. 3 Medium or State of Matter. 4 Presence of Catalysts and Competitors. 5 Pressure.