Differential Rate Law Practice

What does the order of a reaction tell us?

• The speed at which a reaction proceeds

• The energy required to start a reaction

• How the rate of reaction changes with concentration of reactants

• The time it takes for a reaction to complete

If the rate of a reaction doubles when the concentration of a reactant is doubled, what is the order of the reaction with respect to that reactant?

• 0

• 1

• 2

• 3

The rate constant of a reaction can be determined by which of the following?

• Measuring the change in concentration of reactants over time

• Calculating the energy of activation

• Determining the order of reaction

• Both A and C

How does an increase in temperature generally affect the rate of a chemical reaction?

• Decreases the rate

• Increases the rate

• Has no effect on the rate

• Initially increases the rate, then decreases it

If the concentration of a reactant is tripled and the rate of the reaction increases by a factor of nine, what is the order of the reaction with respect to that reactant?

• 1

• 2

• 3

• 0

What effect does a catalyst have on the rate of a chemical reaction?

• Increases the rate by lowering the activation energy

• Decreases the rate by increasing the activation energy

• Increases the rate by increasing the activation energy

• Has no effect on the rate of the reaction

In a first-order reaction, if the concentration of the reactant is halved, how does the rate of the reaction change?

• It is halved

• It is quartered

• It remains the same

• It doubles

Which of the following is true about zero-order reactions?

• The rate is independent of the concentration of the reactants.

• The rate doubles when the concentration of the reactants doubles.

• The rate decreases as the concentration of the reactants increases.

• The rate increases as the concentration of the reactants increases.

How does the concentration of reactants affect the rate of a second-order reaction?

• The rate is independent of the concentration of the reactants.

• The rate decreases as the concentration of the reactants increases.

• The rate increases as the square of the concentration of the reactants.

• The rate increases linearly with the concentration of the reactants.

What is the general form of the zero-order rate law?

• A) rate = k[A]^1[B]^1

• B) rate = k[A]^0

• C) rate = k

• D) rate = k[A]^2