AP Chemistry Unit 5 Kinetics Reivew

Front

What happens to the rate constant (k) in a first order reaction as the reaction proceeds at constant temperature?

Back

k remains the same.

Front

What are the conditions necessary for a chemical reaction to occur?

Back

Particles must collide with enough energy, sufficient activation energy, and correct orientation.

Front

What is the rate law for the reaction BF3(g) + NH3(g) ⟶ F3BNH3(g)?

Back

rate = k[BF3][NH3]

Front

Which of the following represents a first order overall reaction: k1= 1.000 M s-1, k1= 5403.2 M½ s½, k1= 1.23 x 10-6 M-1 s-1, k1= 10.7 s-1?

Back

k1= 10.7 s-1.

Front

What does a linear and positive slope graph for time vs. 1/[A] indicate in a second order reaction?

Back

It indicates that the reaction is second order.

Front

Define a first order reaction.

Back

A reaction where the rate is directly proportional to the concentration of one reactant.

Front

What is activation energy?

Back

The minimum energy required for a chemical reaction to occur.

Front

How does temperature affect the rate of a chemical reaction?

Back

Increasing temperature generally increases the reaction rate.

Front

What is the relationship between concentration and reaction rate in a zero order reaction?

Back

The reaction rate is constant and does not depend on the concentration of reactants.

Front

What is a rate law?

Back

An equation that relates the rate of a reaction to the concentration of reactants.