Reaction Rates

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed in the process.

Front

How does temperature affect reaction rates?

Back

Increasing temperature generally increases the rate of a reaction by increasing the kinetic energy of particles.

Front

What happens to the kinetic energy of particles when temperature increases?

Back

The kinetic energy of particles increases, leading to more frequent and effective collisions.

Front

What is the effect of concentration on reaction rates?

Back

Increasing the concentration of reactants typically increases the rate of reaction.

Front

What role does surface area play in reaction rates?

Back

A larger surface area allows more particles to collide, increasing the reaction rate.

Front

What is the relationship between temperature and the speed of a chemical reaction?

Back

As temperature increases, the speed of the chemical reaction generally increases.

Front

What is the effect of a catalyst on the energy barrier of a reaction?

Back

A catalyst lowers the energy barrier, making it easier for the reaction to occur.

Front

What is the term for the minimum energy required for a reaction to occur?

Back

Activation energy.

Front

How does increasing the temperature affect the glow stick reaction?

Back

The glow stick glows brighter in hot water because the chemical reaction speeds up.

Front

What happens to reaction rates when particle size decreases?

Back

Decreasing particle size increases the reaction rate due to a larger surface area for collisions.