What Are The 4 Factors That Affect Reaction Rate?

• 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 PPT?

The factors that affect the rate of a chemical reaction are : nature of reactants, temperature, concentration, size of particle and 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 the 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 Class 12?

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 is the effect of temperature on rate of reaction?

An increase in temperature causes a rise in the energy levels of the molecules involved in the reaction, so the rate of the reaction increases. Similarly, the rate of reaction will decrease with a decrease in temperature .

What is a substance that increases the rate of a reaction without being used up during the reaction?

catalyst, in chemistry, any substance that increases the rate of a reaction without itself being consumed.

What are the five factors that affect the rate of chemical reactions quizlet?

• Nature of Reactants.
• Surface Area (more = faster)
• Temperature (higher = faster)
• Concentration (larger = faster)
• Catalyst (present = faster)

What is the main factor that can affect the rate of a reaction quizlet?

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.

Which of the following affects the rate of reaction quizlet?

The rate of reaction is affected by the concentration of the reactants, the presence of a catalyst, the surface area of the reactants, and the temperature of the reaction . Removing or decreasing each of these would result in a decreased reaction rate. You just studied 11 terms!

What are the 5 factors that affect a reaction rate and how do each affect it?

• 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 5 factors that affect the rate of chemical reaction and give example for each?

• Concentration of reactants.
• Pressure.
• Temperature.
• Catalyst.
• Nature of reactants.
• Orientation of reacting species.
• Surface area.
• Intensity of light.

What are the 4 ways to speed up a chemical reaction?

• Use a Catalyst. A catalyst is a substance that can alter the rate of a chemical reaction. ...
• Increase the Temperature. ...
• Concentrate of the Reactants. ...
• Increase the Surface Area of the Reactants.

What are the factors that can affect the rate of reaction How does it affect the reaction rate?

• Reactant concentration. Increasing the concentration of one or more reactants will often increase the rate of reaction. ...
• Physical state of the reactants and surface area. ...
• Temperature. ...
• Presence of a catalyst.

What is rate of reaction write two factors that affect the rate of reaction?

The two main factors that affect the rate of a chemical reaction are the nature of reactants and surface area .

Which three factors affect the rate of a chemical reaction Mcq?

Increasing the initial concentration of reactant increases the reaction rate. Hence, reaction rate is controlled by temperature and pressure conditions and initial concentration of reactant .

Which factors would decrease the rate of a reaction?

Decreasing the temperature of the reactants causes the molecules to move slower which creates low energy collisions and decreases the rate of the chemical reaction. Extra ingredients added to the reactants to speed up the reaction. Extra ingredients added to the reactants to slow down the reaction.

What changes the rate of a reaction without being permanently altered?

Like all other catalysts, enzymes are characterized by two fundamental properties. First, they increase the rate of chemical reactions without themselves being consumed or permanently altered by the reaction. Second, they increase reaction rates without altering the chemical equilibrium between reactants and products.

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.

Which factors increase the rate of a reaction Quizizz?

Increasing concentration increases reaction rate due to more collisions.

Which is an example of concentration affecting the rate of reaction?

Increasing the concentration of reactants also changes reaction rate: Two antacid tablets will neutralize a given amount of acid faster than one tablet will. Higher concentrations of acid in rain erode marble faster than lower concentrations.

What factors can affect the value of the activation energy of a reaction?

• Reactant Concentrations. Raising the concentrations of reactants makes the reaction happen at a faster rate. ...
• Surface Area. ...
• Pressure. ...
• Temperature. ...
• Presence or Absence of a Catalyst. ...
• Nature of the Reactants.

What factors increase the rate of a chemical reaction pre lab?

What factors increase the rate of a chemical reaction? the amounts of reactants, the temperature, and the presence or absence of a catalyst .

What are the 5 ways to speed up a reaction?

1. Heat it up to speed it up: increasing temperature. ...
2. The opposite of social distancing: increasing concentration or pressure to increase reaction speed. ...
3. Divide and conquer: decreasing particle size to increase reaction speed. ...
4. Pro gamer move: dropping a catalyst.

How catalyst affects the rate of reaction?

A catalyst speeds up a chemical reaction, without being consumed by the reaction. It increases the reaction rate by lowering the activation energy for a reaction .

What are 3 ways you can speed up a chemical 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)

How does light affect the rate of reaction?

Effect of light on reaction rate

The greater the intensity of light (visible or ultra-violet) the more reactant molecules are likely to gain the required energy (activation energy) and react , so the reaction speed increases.

What is the major factor that affects the rate of a heterogeneous reaction?

The reaction rate of a heterogeneous reaction depends on the surface area of the more condensed phase . Automobile engines use surface area effects to increase reaction rates.

How the factors affect the chemical reaction?

Which of the following factors affect the rate of reaction Mcq?

Notes: The rate of reaction depends upon the experimental conditions such as concentration of reactants (pressure in case of gases) , temperature and catalyst.