Question 1

The following questions refer to the hypothetical reaction A + B $\rightarrow$ products. The kinetics data given can be analyzed to answer the questions. -The rate expression for a particular reaction is Rate = k[A][B]³. If the initial concentration of B is increased from 0.2 M to 0.6 M, the initial rate will increase by which of the following factors? A) 6 B) 3 C) 27 D) 4 E) 12

Accepted Answer

The rate expression shows that the reaction is second order with respect to both A and B (sum of the exponents is 2). Therefore, the initial rate is directly proportional to the concentrations of both reactants.

If the initial concentration of B is increased from 0.2 M to 0.6 M, then its concentration is tripled. According to the rate expression, this will cause the initial rate to increase by a factor of 3^2 = 9.

Thus, the initial rate will increase by a factor of 9, which is equivalent to saying that it will increase by 27 times. Therefore, the correct answer is choice C.

Question 2

A general reaction written as 2A + 2B $\rightarrow$ C + 2D is studied and yields the following data. $<strong>A general reaction written as 2A + 2B \rightarrow C + 2D is studied and yields the following data. -What is the overall order of the reaction?</strong> A) 0 B) 2 C) 3 D) 4 E) 1 <div style=padding-top: 35px>$

-What is the overall order of the reaction?

A) 0
B) 2
C) 3
D) 4
E) 1

Accepted Answer

-F1F1F1S1F1F1F10[B]/F1F1F1S1F1F1F10t = (8.00 F1F1F1S1F1F1F10 10^-⁵)

Question 3

A general reaction written as 2A + 2B $\rightarrow$ C + 2D is studied and yields the following data.  &#10;&#10;-What is the overall order of the reaction?&#10;A) 0&#10;B) 2&#10;C) 3&#10;D) 4&#10;E) 1&#10;

Accepted Answer

1&#10;

Question 4

The following questions refer to the hypothetical reaction A + B $\rightarrow$ products. The kinetics data given can be analyzed to answer the questions. -The rate law for the reaction is Rate = k[A]^x[B]^y. What are the values of x and y? A) x = 1 y = 0 B) x = 1 y = 1 C) x = 0 y = 1 D) x = 1 y = 2 E) x = 2 y = 1

Accepted Answer

The rate law shows that the reaction rate depends on [A] and [B], as well as on the powers of the concentrations of the products in the rate-determining step. The exponents on [A] and [B] are not given, so we cannot tell whether the reaction is first order in A, second order in A, etc. Likewise for B. However, the exponents on F1F1F1S1 and F1F1F10 are shown as follows: x on F1F1F1S1 and y on F1F1F10. This implies that the reaction is first order with respect to F1F1F1S1 and F1F1F10. Therefore, the values of x and y are both equal to 1.

Question 5

The rate constant k is dependent on&#10;A) the concentration of the product.&#10;B) the order of the reaction.&#10;C) the temperature.&#10;D) the concentration of the reactant.&#10;E) none of these&#10;

Accepted Answer

The rate constant k is dependent on temperature. It is generally observed that an increase in temperature increases the rate of reaction by increasing the number of collisions between reactant molecules, and thus increasing the likelihood of effective collisions. The activation energy, which is the minimum energy required for reactant molecules to form products, is also affected by temperature.

Question 6

The following questions refer to the hypothetical reaction A + B $\rightarrow$ products. The kinetics data given can be analyzed to answer the questions. -What form will the pseudo-rate law have? A) Rate = kk'[A]^x B) Rate = k'[A]^x[B]^y C) Rate = kk'[B]^y D) Rate = k'[B]^y E) Rate = k'[A]^x

Accepted Answer

The pseudo-rate law is of the form Rate = k'[A]^x, as the concentration of B does not appear in the rate equation. Therefore, the best choice is E, which matches this form.

Question 7

The oxidation of Cr³⁺ to CrO₄²^- can be accomplished using Ce⁴⁺ in a buffered solution. The following data were obtained:
Determine the order in the rate law of the species Ce⁴⁺.

A) 1
B) -2
C) 3
D) -1
E) 2

Accepted Answer

The rate law for the given reaction is: Rate = k[Ce⁴⁺]^2 This indicates that the order of Ce⁴⁺ is 2. Therefore, the best choice is E.

Question 8

A general reaction written as 2A + 2B $\rightarrow$ C + 2D is studied and yields the following data. $<strong>A general reaction written as 2A + 2B \rightarrow C + 2D is studied and yields the following data. -What is the overall order of the reaction?</strong> A) 0 B) 2 C) 3 D) 4 E) 1 <div style=padding-top: 35px>$

-What is the overall order of the reaction?

A) 0
B) 2
C) 3
D) 4
E) 1

Accepted Answer

The units of the rate constant depend on the order of the reaction. For a first-order reaction, the units are s^-1.

Question 9

For the reaction 2N₂O₅(g) $\rightarrow$ 4NO₂(g) + O₂(g), the following data were collected. The initial rate of production of NO₂ for this reaction is approximately A) 6.4 *10^-⁴ mol/L • min B) 3.2*10^-⁴ mol/L • min C) 1.24* 10^-² mol/L • min D) 1.6 * 10^-⁴ mol/L • min E) none of these

Accepted Answer

The answer of For the reaction 2N₂O₅(g) $\rightarrow$ 4NO₂(g) +...

Question 10

A general reaction written as 2A + 2B $\rightarrow$ C + 2D is studied and yields the following data.  &#10;&#10;-What is the order of the reaction with respect to A?&#10;A) 1&#10;B) 0&#10;C) 4&#10;D) 3&#10;E) 2&#10;

Accepted Answer

The order of the reaction with respect to A can be found by comparing experiments 1 and 2 or experiments 3 and 4. In both cases, the concentration of B is constant while the concentration of A is doubled. The rate of the reaction remains the same, indicating that the reaction is zero-order with respect to A.

Question 11

A general reaction written as 2A + 2B $\rightarrow$ C + 2D is studied and yields the following data.  &#10;&#10;-What is the order of the reaction with respect to B?&#10;A) 3&#10;B) 2&#10;C) 4&#10;D) 1&#10;E) 0&#10;

Accepted Answer

The answer of A general reaction written as 2A +...

Question 12

The oxidation of Cr³⁺ to CrO₄²^- can be accomplished using Ce⁴⁺ in a buffered solution. The following data were obtained:
Determine the order in the rate law of the species Cr³⁺.

A) -2
B) 3
C) 1
D) 2
E) -1

Accepted Answer

The answer of The oxidation of Cr³⁺ to CrO₄²^- can...

Question 13

The balanced equation for the reaction of bromate ion with bromide in acidic solution is BrO+ 5Br^- + 6H⁺ $\rightarrow$ 3Br₂ + 3H₂O
At a particular instant in time, the value of - $\Delta$ [Br^-]/ $\Delta$ t is 2.0 * 10^-³ mol/L • s. What is the value of $\Delta$ [Br₂]/ $\Delta$ t in the same units?

A) 1.2 * 10^-³
B) 2.0 * 10^-³
C) 6.0 *10^-³
D) 3.3*10^-⁵
E) 3.3 * 10^-³

Accepted Answer

The answer of The balanced equation for the reaction of...

Question 14

A general reaction written as 2A + 2B $\rightarrow$ C + 2D is studied and yields the following data. -What is the numerical value of the rate constant? A) 4.00 * 10^-¹ B) 4.00* 10^-² C) 4.00 * 10^-³ D) 4.00 * 10^-⁴ E) none of these

Accepted Answer

The answer of A general reaction written as 2A +...

Question 15

The oxidation of Cr³⁺ to CrO₄²^- can be accomplished using Ce⁴⁺ in a buffered solution. The following data were obtained:
Determine the order in the rate law of the species Cr³⁺.

A) -2
B) 3
C) 1
D) 2
E) -1

Accepted Answer

The answer of The oxidation of Cr³⁺ to CrO₄²^- can...

Question 16

The reaction H 2 SeO 3 (aq) + 6I - (aq) + 4H + (aq) $\rightarrow$ 2I 3 - (aq) + 3H 2 O(l) + Se(s) was studied at 0°C by the method of initial rates: -What is the rate law? A) Rate = k[H₂SeO₃][H⁺][I^-]² B) Rate = k[H₂SeO₃][H⁺]²[I^-]³ C) Rate = k[H₂SeO₃][H⁺][I^-] D) Rate = k[H₂SeO₃][H⁺]²[I^-] E) Rate = k[H₂SeO₃]²[H⁺][I^-]

Accepted Answer

The answer of The reaction&#10;H 2 SeO 3 (aq) +...

Question 17

The average rate of disappearance of ozone in the reaction 2O₃(g) $\rightarrow$ 3O₂(g) is found to be 9.6 *10^-³ atm over a certain interval of time. What is the rate of appearance of O₂ during this interval?

A) 6.4* 10^-³ atm/time
B) 2.9 *10^-² atm/time
C) 1.9 * 10^-² atm/time
D) 1.4 *10^-² atm/time
E) 9.6* 10^-³ atm/time

Accepted Answer

The answer of The average rate of disappearance of ozone...

Question 18

A first-order reaction is 54% complete at the end of 12 min. What is the value of the rate constant? A) 0.065 min^-¹ B) 0.33 min^-¹ C) 6.5 * 10^-² min^-¹ D) 2.8* 10^-² min^-¹ E) 5.1*10^-² min^-¹

Accepted Answer

The answer of A first-order reaction is 54% complete at...

Question 19

For the reaction&#10;2A + B $\rightarrow$ products&#10;the following mechanism is proposed:&#10;A + B   M&#10;A + M $\rightarrow$ products&#10;A catalyst never appears in a rate law.

Accepted Answer

The answer of For the reaction&#10;2A + B $\rightarrow$ products&#10;the...

Question 20

The following data were obtained for the reaction of NO with O₂. Concentrations are in molecules/cm³ and rates are in molecules/cm³ • s. Which of the following is the correct rate law? A) Rate = k[NO]² B) Rate = k[NO]²[O₂]² C) Rate = k[NO][O₂]² D) Rate = k[NO][O₂] E) Rate = k[NO]²[O₂]

Accepted Answer

The answer of The following data were obtained for the...

Question 21

For which of the following is the half-life directly dependent on the concentration of the reactant?&#10;A) zero-order reaction&#10;B) second-order reaction&#10;C) first-order reaction&#10;D) two of these&#10;E) all of these&#10;

Accepted Answer

The answer of For which of the following is the...

Question 22

Initial rate data have been determined at a certain temperature for the gaseous reaction 2NO + 2H₂ $\rightarrow$ N₂ + 2H₂O What is the numerical value of the rate constant? A) 1.1 B) 6.9 C) 2.2 D) 0.11 E) 0.35

Accepted Answer

The answer of Initial rate data have been determined at...

Question 23

The following initial rate data were found for the reaction 2MnO 4 - + 5H 2 C 2 O 4 + 6H + $\rightarrow$ 2Mn 2+ + 10CO 2 + 8H 2 O -Which of the following is the correct rate law? A) Rate = k[MnO₄^-][H₂C₂O₄][H⁺] B) Rate = k[MnO₄^-]²[H₂C₂O₄][H⁺] C) Rate = k[MnO₄^-]²[H₂C₂O₄] D) Rate = k[MnO₄^-][H₂C₂O₄]² E) Rate = k[MnO₄^-]²[H₂C₂O₄]⁵[H⁺]⁶

Accepted Answer

The answer of The following initial rate data were found...

Question 24

The following initial rate data were found for the reaction&#10;2MnO 4 - + 5H 2 C 2 O 4 + 6H + $\rightarrow$ 2Mn 2+ + 10CO 2 + 8H 2 O  &#10;&#10;-For which order reaction is the half-life of the reaction independent of the initial concentration of the reactant(s)?&#10;A) zero order&#10;B) first order&#10;C) second order&#10;D) all of these&#10;E) none of these&#10;

Accepted Answer

The answer of The following initial rate data were found...

Question 25

Use the following initial rate data for the reaction in aqueous solution to determine the rate law. A) Rate = k[CH₃COCH₃][H⁺] B) Rate = k[CH₃COCH₃][Br₂][H⁺] C) Rate = k[Br₂][H⁺] D) Rate = k[CH₃COCH₃][Br₂][H⁺]² E) Rate = k[CH₃COCH₃][Br₂]

Accepted Answer

The answer of Use the following initial rate data for...

Question 26

The following initial rate data were found for the reaction 2MnO 4 - + 5H 2 C 2 O 4 + 6H + $\rightarrow$ 2Mn 2+ + 10CO 2 + 8H 2 O -What is the value of the rate constant? A) 2 * 10⁵M • s^-¹ B) 2 * 10⁵M^-² • s^-¹ C) 200 M^-² • s^-¹ D) 2 *10^-⁴ M • s^-¹ E) 200 M^-¹ • s^-¹

Accepted Answer

The answer of The following initial rate data were found...

Question 27

The reaction of (CH₃)₃CBr with hydroxide ion proceeds with the formation of (CH₃)₃COH. (CH₃)₃CBr (aq) + OH^-(aq) $\rightarrow$(CH₃)₃COH (aq) + Br^-(aq) The following data were obtained at 55°C. What will the initial rate (in mol/L • s) be in Experiment 4? A) 18 *10^-³ B) 6.0 * 10^-³ C) 9.0 * 10^-³ D) 3.0* 10^-³ E) none of these

Accepted Answer

The answer of The reaction of (CH₃)₃CBr with hydroxide ion...

Question 28

For the reaction in which A and B react to form C, the following initial rate data were obtained. What is the rate law for the reaction? A) Rate = k[A]²[B]² B) Rate = k[A]²[B] C) Rate = k[A][B]² D) Rate = k[A][B] E) Rate = k[A]³

Accepted Answer

The answer of For the reaction in which A and...

Question 29

The following questions refer to the hypothetical reaction A + B $\rightarrow$ products. The kinetics data given can be analyzed to answer the questions. Determine the magnitude of the pseudo-rate constant (k') if the magnitude of X in the rate data is 0.00905. A) 0.31 B) 1.81 *10^-³ C) 4.3 *10^-³ D) 0.86 E) 1.2 * 10^-²

Accepted Answer

The answer of The following questions refer to the hypothetical...

Question 30

The OH radical disproportionates according to the elementary chemical reaction OH + OH $\rightarrow$ H₂O + O. This reaction is second order in OH. The rate constant for the reaction is 2.2 *10^-¹² cm³/molecule • s at room temperature. If the initial OH concentration is 1.8 *10¹³ molecules/cm³, what is the first half-life for the reaction?

A) 3.2*10¹¹ s
B) 0.025 s
C) 4.1 * 10²⁴ s
D) 3.7 s
E) 5.1 s

Accepted Answer

The answer of The OH radical disproportionates according to the...

Question 31

For the reaction A + B $\rightarrow$ products, the following data were obtained. What is the experimental rate law? A) Rate = k[A]²[B] B) Rate = k[B] C) Rate = k[A][B] D) Rate = k[A] E) Rate = k[A][B]²

Accepted Answer

The answer of For the reaction A + B $\rightarrow$...

Question 32

Tabulated below are initial rate data for the reaction 2Fe(CN)₆³^- + 2I^- $\rightarrow$2Fe(CN)₆⁴^- + I₂ What is the value of k? A) 10³M^-³ s^-¹ B) 50 M^-² s^-¹ C) 10 M^-² s^-¹ D) 10⁷M^-⁵ s^-¹ E) none of these

Accepted Answer

The answer of Tabulated below are initial rate data for...

Question 33

What is the rate law for the following reaction, given the data below? 2NO + H₂ $\rightarrow$N₂O + H₂O A) Rate = k[N₂O][H₂O] B) Rate = k[NO][H₂] C) Rate = k[NO]²[H₂] D) Rate = k[NO] E) Rate = k[NO]²

Accepted Answer

The answer of What is the rate law for the...

Question 34

The following initial rate data were found for the reaction 2MnO 4 - + 5H 2 C 2 O 4 + 6H + $\rightarrow$ 2Mn 2+ + 10CO 2 + 8H 2 O -The reaction A $\rightarrow$ B + C is known to be zero order in A with a rate constant of 5.0 *10^-² mol/L • s at 25° C. An experiment was run at 25°C where [A]₀ = 1.0 *10^-³ M. What is the integrated rate law? A) [A] = kt B) [A]₀ - [A] = kt C) D) [A] - [A]₀ = kt E)

Accepted Answer

The answer of The following initial rate data were found...

Question 35

The decomposition of N 2 O 5 (g) to NO 2 (g) and O 2 (g) obeys first-order kinetics. Assume the form of the rate law is Rate where k = 3.4 *10 - 5 s - 1 at 25°C. -What is the initial rate of reaction at 25°C where [N₂O₅]₀ = 5.0 *10^-² M? A) 3.4 * 10^-⁵ mol/L • s B) 5.0 * 10^-² mol/L • s C) 6.8*10^-⁴ mol/L • s D) 1.7* 10^-⁶ mol/L • s E) none of these

Accepted Answer

The answer of The decomposition of N 2 O 5...

Question 36

Tabulated below are initial rate data for the reaction 2Fe(CN)₆³^- + 2I^- $\rightarrow$2Fe(CN)₆⁴^- + I₂ What is the experimental rate law? A) k[Fe(CN)₆³^-][I^-]² B) k[Fe(CN)₆³^-][I^-] [Fe(CN)₆⁴^-] C) k[Fe(CN)₆³^-]²[I^-] D) k[Fe(CN)₆³^-]²[I^-]²[Fe(CN)₆⁴^-]²[I₂] E) k[Fe(CN)₆³^-]²[I^-][Fe(CN)₆⁴^-][I₂]

Accepted Answer

The answer of Tabulated below are initial rate data for...

Question 37

Two isomers (A andB) of a given compound dimerize as follows:
Both processes are known to be second order in reactant, and k₁ is known to be 0.25 L/mol • s at 25° C, where

In a particular experiment, A and B were placed in separate containers at 25° C, where [A]₀ = 1.0 * 10^-² M and [B]₀ = 2.5 *10^-² M. It was found that [A] = 3[B] after the reactions progressed for 3.0 min.
Calculate the half-life for the reaction involving A.

A) 4.0 * 10² s
B) 1.8 *10² s
C) 2.5 * 10³
D) 1.7 * 10¹ s

Accepted Answer

The answer of Two isomers (A andB) of a given...

Question 38

The decomposition of N 2 O 5 (g) to NO 2 (g) and O 2 (g) obeys first-order kinetics. Assume the form of the rate law is Rate where k = 3.4 *10 - 5 s - 1 at 25°C. -What is the half-life for the reaction described? A) 2.4 * 10^-⁵ s B) 7.4 *10² s C) 5.9 * 10⁵s D) 2.0 *10⁴s E) none of these

Accepted Answer

The answer of The decomposition of N 2 O 5...

Question 39

The reaction H 2 SeO 3 (aq) + 6I - (aq) + 4H + (aq) $\rightarrow$ 2I 3 - (aq) + 3H 2 O(l) + Se(s) was studied at 0°C by the method of initial rates: -What is the numerical value of the rate constant? A) 4.2 B) 2.1 * 10² C) 5.2 * 10⁵ D) 1.9 * 10^-⁶ E) none of these

Accepted Answer

The answer of The reaction&#10;H 2 SeO 3 (aq) +...

Question 40

The reaction A $\rightarrow$ B + C is known to be zero order in A with a rate constant of 3.8 *10^-² mol/L • s at 25° C. An experiment was run at 25°C where [A]₀ = 2.2 *10^-³ M. What is the rate after 6.8 minutes?

A) 2.2 *10^-³ mol/L • s
B) 3.8 * 10^-² mol/L • s
C) 8.4 *10^-⁵ mol/L • s
D) 8.1 *10^-⁴ mol/L • s
E) 1.5 *10^-¹¹ mol/L • s

Accepted Answer

The answer of The reaction A $\rightarrow$ B + C...

Question 41

For the reaction aA $\rightarrow$ products, select the reaction order(s) that best fit(s) the observations.

-A plot of [A]² vs. t gives a straight line.

A) zero order in A
B) second order in A
C) first order in A
D) all of these
E) none of these

Accepted Answer

The answer of For the reaction aA $\rightarrow$ products, select...

Question 42

For the reaction aA $\rightarrow$ products, select the reaction order(s) that best fit(s) the observations.

-A plot of [A]² vs. t gives a straight line.

A) zero order in A
B) second order in A
C) first order in A
D) all of these
E) none of these

Accepted Answer

The answer of For the reaction aA $\rightarrow$ products, select...

Question 43

The reaction 2NOBr $\rightarrow$ 2NO + Br 2 exhibits the rate law Rate = k[NOBr] 2 where k = 1.0 *10 - 5 M - 1 • s - 1 at 25° C. This reaction is run where the initial concentration of NOBr ([NOBr] 0 ) is 1.00 * 10 - 1 M. -What is one half-life for this experiment? A) 1.0 * 10⁶ s B) 6.9 * 10⁴ s C) 5.0 * 10^-¹ s D) 1.0 *10^-⁵ s E) none of these

Accepted Answer

The answer of The reaction&#10;2NOBr $\rightarrow$ 2NO + Br 2...

Question 44

For a reaction aA $\rightarrow$products, [A] 0 = 4.0 M, and the first three successive half-lives are 48, 96, and 192 min.&#10;&#10;-Calculate [A] at t = 81 min.&#10;A) 2.6 M&#10;B) 3.0 M&#10;C) 1.3 M&#10;D) 1.5 M&#10;E) none of these&#10;

Accepted Answer

The answer of For a reaction aA $\rightarrow$products, [A] 0...

Question 45

The reaction 2NOBr $\rightarrow$ 2NO + Br 2 exhibits the rate law Rate = k[NOBr] 2 where k = 1.0 *10 - 5 M - 1 • s - 1 at 25° C. This reaction is run where the initial concentration of NOBr ([NOBr] 0 ) is 1.00 * 10 - 1 M. -The [NO] after 1.00 h has passed is A) 9.7 * 10^-³M B) 9.9*10^-³M C) 1.0 * 10^-³M D) 3.5 * 10^-⁴M E) none of these

Accepted Answer

The answer of The reaction&#10;2NOBr $\rightarrow$ 2NO + Br 2...

Question 46

For a reaction aA $\rightarrow$products, [A] 0 = 4.0 M, and the first three successive half-lives are 48, 96, and 192 min. -Calculate k (without units). A) 5.2 * 10^-³ B) 1.4 * 10^-² C) 2.6*10^-³ D) 4.1*10^-³ E) none of these

Accepted Answer

The answer of For a reaction aA $\rightarrow$products, [A] 0...

Question 47

For the reaction 2N 2 O 5 (g) $\rightarrow$ 4NO 2 (g) + O 2 (g), the following data were collected. -The concentration of O₂ at t = 10. min is A) 0.32 * 10^-² mol/L B) 2.0 * 10^-⁴ mol/L C) 0.64 * 10^-² mol/L D) 0.16 *10^-² mol/L E) none of these

Accepted Answer

The answer of For the reaction 2N 2 O 5...

Question 48

For the reaction aA $\rightarrow$ products, select the reaction order(s) that best fit(s) the observations.

-A plot of [A]² vs. t gives a straight line.

A) zero order in A
B) second order in A
C) first order in A
D) all of these
E) none of these

Accepted Answer

The answer of For the reaction aA $\rightarrow$ products, select...

Question 49

For the reaction aA $\rightarrow$ products, select the reaction order(s) that best fit(s) the observations. -The reaction A $\rightarrow$ B + C is known to be zero order in A with a rate constant of 5.4 * 10^-² mol/L • s at 25° C. An experiment was run at 25°C where [A]₀ = 3.0 *10^-³ M. What is the half-life for the reaction? A) 1.3 * 10¹ s B) 2.7 * 10^-² s C) 8.1 *10^-² s D) 6.2* 10⁴ s E) 2.8 * 10^-² s

Accepted Answer

The answer of For the reaction aA $\rightarrow$ products, select...

Question 50

For the reaction aA $\rightarrow$ products, select the reaction order(s) that best fit(s) the observations.

-A plot of [A]² vs. t gives a straight line.

A) zero order in A
B) second order in A
C) first order in A
D) all of these
E) none of these

Accepted Answer

The answer of For the reaction aA $\rightarrow$ products, select...

Question 51

For a reaction aA $\rightarrow$products, [A] 0 = 4.0 M, and the first three successive half-lives are 48, 96, and 192 min. -The reaction 2NO $\rightarrow$N₂ + O₂ has the following rate law: After a period of 2.0 * 10³ s, the concentration of NO falls from an initial value of 2.8 *10^-³ mol/L to 2.0* 10^-⁴ mol/L. What is the rate constant, k? A) 4.0 *10^-⁴ M^-¹/s B) 7.2 * 10^-² M^-¹/s C) 1.7 *10^-⁴ M^-¹/s D) 4.0 *10^-⁷ M^-¹/s E) 3.6 * 10^-² M^-¹/s

Accepted Answer

The answer of For a reaction aA $\rightarrow$products, [A] 0...

Question 52

For the reaction aA $\rightarrow$ products, select the reaction order(s) that best fit(s) the observations.

-A plot of [A]² vs. t gives a straight line.

A) zero order in A
B) second order in A
C) first order in A
D) all of these
E) none of these

Accepted Answer

The answer of For the reaction aA $\rightarrow$ products, select...

Question 53

For the reaction aA $\rightarrow$ products, select the reaction order(s) that best fit(s) the observations.

-A plot of [A]² vs. t gives a straight line.

A) zero order in A
B) second order in A
C) first order in A
D) all of these
E) none of these

Accepted Answer

The answer of For the reaction aA $\rightarrow$ products, select...

Question 54

For the reaction 2N 2 O 5 (g) $\rightarrow$ 4NO 2 (g) + O 2 (g), the following data were collected. -The concentration N₂O₅ at 100 min will be approximately A) 0.10*10^-² mol/L B) 0.01 *10^-² mol/L C) 0.06 * 10^-² mol/L D) 0.03 *10^-² mol/L E) none of these

Accepted Answer

The answer of For the reaction 2N 2 O 5...

Question 55

For the reaction 2N 2 O 5 (g) $\rightarrow$ 4NO 2 (g) + O 2 (g), the following data were collected. -The order of this reaction in N₂O₅ is A) 0 B) 1 C) 2 D) 3 E) none of these

Accepted Answer

The answer of For the reaction 2N 2 O 5...

Question 56

For the reaction aA $\rightarrow$ products, select the reaction order(s) that best fit(s) the observations.

-A plot of [A]² vs. t gives a straight line.

A) zero order in A
B) second order in A
C) first order in A
D) all of these
E) none of these

Accepted Answer

The answer of For the reaction aA $\rightarrow$ products, select...

Question 57

For the reaction aA $\rightarrow$ products, select the reaction order(s) that best fit(s) the observations.

-A plot of [A]² vs. t gives a straight line.

A) zero order in A
B) second order in A
C) first order in A
D) all of these
E) none of these

Accepted Answer

The answer of For the reaction aA $\rightarrow$ products, select...

Question 58

If the reaction 2HI $\rightarrow$ H₂ + I₂ is second order, which of the following will yield a linear plot? A) log [HI] vs. time B) [HI] vs. time C) ln [HI] vs. time D) 1/[HI] vs. time

Accepted Answer

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Question 59

The following question refers to the gas-phase decomposition of chloroethane: C₂H₅Cl $\rightarrow$ products Experiment shows that the decomposition is first order. The following data show kinetics information for this reaction. What is the rate constant for this decomposition? A) 0.22/s B) 0.35/s C) 0.29/s D) 0.02/s E) 0.11/s

Accepted Answer

The answer of The following question refers to the gas-phase...

Question 60

For the reaction 2N 2 O 5 (g) $\rightarrow$ 4NO 2 (g) + O 2 (g), the following data were collected.  &#10;&#10;-The half-life of this reaction is approximately&#10;A) 18 min&#10;B) 36 min&#10;C) 15 min&#10;D) 23 min&#10;E) 45 min&#10;

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The answer of For the reaction 2N 2 O 5...

Question 61

Calculate the value of k₂ where Rate = k₂[B]² A) 0.75 L/mol • s B) 2.2 L/mol • s C) 0.21 L/mol • s D) 1.9 L/mol • s E) none of these

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The answer of Calculate the value of k₂ where Rate...

Question 62

Consider the reaction 3A + B + C $\rightarrow$D + E Where the rate law is defined as An experiment is carried out where [B]₀ = [C]₀ = 1.00 M and [A]₀ = 2.46 *10^-⁴ M. After 2.96 min, [A] = 3.30 *10^-⁵ M. What is the value of k? A) 8.34 *10⁷ L³/mol³ • s B) 4.00* 10^-⁷ L³/mol³ • s C) 2.13 * 10^-⁵ L³/mol³ • s D) 1.48 * 10² L³/mol³ • s E) 8.86 *10³ L³/mol³ • s

Accepted Answer

The answer of Consider the reaction 3A + B +...

Question 63

The following questions refer to the gas-phase decomposition of chloroethane:&#10;C 2 H 5 Cl $\rightarrow$products&#10;Experiment shows that the decomposition is first order. The following data show kinetics information for this reaction.  &#10;&#10;-What would the concentration be after 5.0 s?&#10;A) 0.08 M&#10;B) 0.02 M&#10;C) 0.12 M&#10;D) 0.13 M&#10;E) 0.19 M&#10;

Accepted Answer

The answer of The following questions refer to the gas-phase...

Question 64

Consider the reaction 3A + B + C $\rightarrow$ D + E where the rate law is defined as k[A] 2 [B][C] An experiment is carried out where [B] 0 = [C] 0 = 1.00 M and [A] 0 = 1.00 * 10 - 4 M. -What is the concentration of C after 10.0 min? A) 0.330 M B) 1.10 * 10^-⁵ M C) 1.00 M D) 0.100 M E) none of these

Accepted Answer

The answer of Consider the reaction&#10;3A + B + C...

Deck 15: Chemical Kinetics