Rates of Reactions

Front

What is the effect of higher concentration on the rate of reaction?

Back

It increases the frequency of particle collisions.

Front

What two conditions must particles meet under collision theory for a reaction to occur?

Back

Sufficient energy and correct orientation.

Front

How does smaller particle size affect the surface area for a reaction?

Back

It allows for a larger surface area to be exposed for the reaction.

Front

What is the effect of adding a catalyst on activation energy?

Back

It lowers the activation energy.

Front

What happens to the rate of reaction when a seltzer tablet is ground into powder?

Back

The rate of reaction increases due to increased surface area.

Front

Define 'collision theory' in the context of chemical reactions.

Back

Collision theory states that for a reaction to occur, particles must collide with sufficient energy and proper orientation.

Front

What is activation energy?

Back

Activation energy is the minimum energy required for a chemical reaction to occur.

Front

How does temperature affect the rate of reaction?

Back

Increasing temperature generally increases the rate of reaction by providing more energy to the particles.

Front

What role does surface area play in the rate of reaction?

Back

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

Front

What is the relationship between particle size and reaction rate?

Back

Smaller particle size increases the surface area, leading to a higher reaction rate.