Kinetics

Practice Questions

High School Chemistry › Kinetics

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1

Consider the following equation:

$A + 2B + 2C \rightarrow 2D + 3E$

The initial rate of the reaction was recorded for varying reactant concentrations and was recorded in a table:

$\begin{matrix} \text{Initial rate }(\frac{M}{s}) & [A] & [B] & [C]\ 0.003& 0.2 & 0.2& 0.3\ 0.009& 0.2& 0.6& 0.3\ 0.012& 0.4& 0.2& 0.3\ 0.012& 0.4& 0.2& 0.9 \end{matrix}$

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Based on these experiments, what is the rate law for this reaction?

2

Consider the following equation:

$A + 2B + 2C \rightarrow 2D + 3E$

The initial rate of the reaction was recorded for varying reactant concentrations and was recorded in a table:

$\begin{matrix} \text{Initial rate }(\frac{M}{s}) & [A] & [B] & [C]\ 0.003& 0.2 & 0.2& 0.3\ 0.009& 0.2& 0.6& 0.3\ 0.012& 0.4& 0.2& 0.3\ 0.012& 0.4& 0.2& 0.9 \end{matrix}$

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Based on these experiments, what is the rate law for this reaction?

3

Which of the following statements is NOT true concerning catalysts?

4

Which of the following statements is NOT true concerning catalysts?

5

$\text{Rate}=k[A]^4[B]^3$

If the concentration of each reactant is increased by a factor of two, how much faster will the reaction occur?

6

$\text{Rate}=k[A]^4[B]^3$

If the concentration of each reactant is increased by a factor of two, how much faster will the reaction occur?

7

Consider the following reaction:

$2NO_{2} + F_{2} \rightarrow 2NO_{2}F$

The above reaction is actually composed of two steps that take place at different rates:

1. $NO_{2} + F_{2} \rightarrow NO_{2}F + F$ (slow step)

2. $NO_{2} + F \rightarrow NO_{2}F$ (fast step)

Based on this, what is the rate law for the reaction?

8

Consider the following reaction:

$2NO_{2} + F_{2} \rightarrow 2NO_{2}F$

The above reaction is actually composed of two steps that take place at different rates:

1. $NO_{2} + F_{2} \rightarrow NO_{2}F + F$ (slow step)

2. $NO_{2} + F \rightarrow NO_{2}F$ (fast step)

Based on this, what is the rate law for the reaction?

9

The overall reaction can only proceed as quickly as the __________.

10

The overall reaction can only proceed as quickly as the __________.

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