AP Chem Kinetics Review

Front

What factors increase the rate of a chemical reaction?

Back

Factors that increase the rate of a chemical reaction include increasing temperature, increasing concentration of reactants, adding a catalyst, and increasing the surface area of reactants.

Front

What is activation energy?

Back

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

Front

What is the unit of measurement for the rate of reaction?

Back

The unit for measuring the rate of reaction is M/s (molarity per second).

Front

What is collision theory?

Back

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

Front

What does it mean for a collision to be elastic in collision theory?

Back

In collision theory, elastic collisions are not a requirement; only sufficient energy and correct orientation are necessary for a reaction to occur.

Front

What is the rate constant (k) in a rate expression?

Back

The rate constant (k) is a proportionality factor that relates the rate of a reaction to the concentration of reactants.

Front

What is the unit for k in a first-order reaction?

Back

The unit for k in a first-order reaction is 1/s.

Front

How does temperature affect reaction rates?

Back

Increasing temperature generally increases reaction rates because it increases the kinetic energy of the molecules, leading to more frequent and effective collisions.

Front

What role do catalysts play in chemical reactions?

Back

Catalysts increase the rate of a reaction by lowering the activation energy required for the reaction to occur.

Front

What is the effect of concentration on reaction rates?

Back

Increasing the concentration of reactants typically increases the rate of reaction because it leads to a higher frequency of collisions.