Unit 5: Kinetics

Which factor does NOT affect the rate of a chemical reaction?

For a first-order reaction, a plot of which of the following vs. time gives a straight line?

A reaction has the rate law: rate = k[A]²[B]. If [A] is doubled and [B] is halved, how does the rate change?

For a first-order reaction, a plot of which of the following versus time gives a straight line?

The rate law for a reaction is determined to be rate = k[A]²[B]. If the concentration of A is doubled and the concentration of B is halved, the rate will

A catalyst increases the rate of a reaction by

For a reaction with the rate law rate = k[A][B]², the units of the rate constant k when concentrations are in mol/L and time is in seconds are

The half-life of a first-order reaction is 20 minutes. How much of the original reactant remains after 60 minutes?

According to collision theory, for a reaction to occur, the colliding molecules must have

A proposed mechanism for a reaction is: Step 1: A + B → C (slow) Step 2: C + A → D (fast) The overall reaction and rate law are

The Arrhenius equation k = Ae^(-Ea/RT) predicts that increasing temperature will

A catalyst increases reaction rate by:

For a second-order reaction, a plot of [math] vs. time gives:

The rate-determining step of a multi-step reaction is:

The Arrhenius equation shows that reaction rate increases with temperature because:

A first-order reaction has a half-life that:

An elementary reaction's rate law can be determined directly from:

Increasing surface area of a solid reactant increases reaction rate because:

The rate law for a reaction must be determined:

What is the rate law for this reaction?

Based on the data, what effect does the catalyst have on the reaction?

What is the order of this reaction and the value of the rate constant?

Which of the following best explains the trend observed in this data?

Which statement about this mechanism is correct?

Based on the data, which factor most likely explains the faster reaction in Trial B?

What is the activation energy for the forward reaction?

Based on the units of the rate constant, what is the overall order of the reaction?

For the reaction A → products, the following data is collected: [A]₀ = 0.100 M at t = 0 s [A] = 0.050 M at t = 20 s [A] = 0.025 M at t = 40 s \nThe reaction is