Kinetic Energy and Collisions Flashcardizz

Front

What is Kinetic Energy?

Back

Kinetic Energy is the energy an object possesses due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

What is Collision Theory?

Back

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

Front

What factors affect the rate of reaction according to Collision Theory?

Back

Factors include concentration of reactants, temperature, surface area, and presence of catalysts.

Front

What is the role of activation energy in chemical reactions?

Back

Activation energy is the minimum energy required for reactants to collide successfully and form products.

Front

How does increasing concentration affect reaction rates?

Back

Increasing concentration raises the number of reactant particles, leading to more frequent collisions and a higher reaction rate.

Front

What happens to most collisions in a solution?

Back

Most collisions in a solution are unsuccessful and do not result in a chemical reaction.

Front

What is the relationship between collision frequency and reaction rate?

Back

Higher collision frequency generally leads to a faster reaction rate.

Front

What is an activated complex?

Back

An activated complex is a temporary, unstable arrangement of atoms that forms during a reaction before products are created.

Front

How does temperature influence reaction rates?

Back

Increasing temperature provides reactant particles with more energy, increasing their speed and the likelihood of successful collisions.

Front

What is a catalyst?

Back

A catalyst is a substance that increases the rate of a chemical reaction without being consumed, often by lowering the activation energy.