The combustion of ethylene proceeds by the reaction C2H4 (g) + 3O2 (g) → 2CO2 (g) + 2H2O (g) When the rate of disappearance of O2 is 0.23 M s- 1, the rate of disappearance of C2H4 is M s- 1.

A) 0.46 B) 0.15 C) 0.077 D) 0.35 E) 0.69 A) 0.46 B) 0.15 C) 0.077 D) 0.35 E) 0.69

The concentration of S2O82- remaining at 800 s is _ M.

A) 0.041 B) 0.015 C) 0.076 D) 4.00 × 10- 3 E) 0.046 A) 0.041 B) 0.015 C) 0.076 D) 4.00 × 10- 3 E) 0.046

A particular first- order reaction has a rate constant of 1.35 × 102 s- 1 at 25°C. What is the magnitude of k at 75°C if Ea = 85.6 kJ/mol?

A) 1.36 × 102 B) 3.85 × 106 C) 670 D) 1.93 × 104 E) 3.47 × 104 A) 1.36 × 102 B) 3.85 × 106 C) 670 D) 1.93 × 104 E) 3.47 × 104

A first- order reaction has a rate constant of 0.33 min- 1. It takes min for the reactant concentration to decrease from 0.13 M to 0.088 M.

A) 1.4 B) 0.13 C) 0.51 D) 0.85 E) 1.2 A) 1.4 B) 0.13 C) 0.51 D) 0.85 E) 1.2

SO2Cl2 decomposes in the gas phase by the reaction SO2Cl2 (g) →SO2 (g) + Cl2 (g) The reaction is first order in SO2Cl2 and the rate constant is 3.0 × 10- 6 s- 1at 600 K. A vessel is charged with 3.3 atm of SO2Cl2 at 600 K. The partial pressure of SO2 at 3.0 × 105 s is _ _ atm.

A) 2.0 B) 3.7 C) 3.0 D) 2.1 E) 1.3 A) 2.0 B) 3.7 C) 3.0 D) 2.1 E) 1.3

The rate law of the overall reaction is rate = k[A]2. Which of the following will not increase the rate of the reaction?

A) increasing the temperature of the reaction B) increasing the concentration of reactant A C) adding a catalyst for the reaction D) increasing the concentration of reactant B E) All of these will increase the rate. A) increasing the temperature of the reaction B) increasing the concentration of reactant A C) adding a catalyst for the reaction D) increasing the concentration of reactant B E) All of these will increase the rate.

The data in the table below were obtained for the reaction: 2 ClOS1U1B12 S1U1B0(aq) + 2 OHS1U1P1- S1S1P0(aq) →ClOS1U1B13S1U1B0S1U1P1- S1S1P0(aq) + ClOS1U1B12S1U1B0S1U1P1- S1S1P0(aq) + HS1U1B12S1U1B0O (1) -What is the order of the reaction with respect to ClO2?

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

Exam 14: Chemical Kinetics

The combustion of ethylene proceeds by the reaction C₂H₄(g) + 3O₂(g) → 2CO₂(g) + 2H₂O (g) When the rate of disappearance of O₂is 0.23 M s^-¹, the rate of disappearance of C₂H₄is M s^-¹.

(Multiple Choice)

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Question 41

A burning splint will burn more vigorously in pure oxygen than in air because

(Multiple Choice)

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Question 42

Which substance in the reaction below either appears or disappears the fastest? 4NH₃+ 7O₂ → 4NO₂+ 6H₂O

(Multiple Choice)

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Question 43

The concentration of S₂O₈²^-remaining at 800 s is _ M.

(Multiple Choice)

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Question 44

The active site of nitrogenase is a cofactor that contains two transition metals. These transition metals are .

(Multiple Choice)

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Question 45

The rate law of a reaction is rate = k[D][X]. The units of the rate constant are _ _.

(Multiple Choice)

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Question 46

A particular first- order reaction has a rate constant of 1.35 × 10²s^-¹at 25°C. What is the magnitude of k at 75°C if E_a= 85.6 kJ/mol?

(Multiple Choice)

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Question 47

A reaction was found to be zero order in A. Increasing the concentration of A by a factor of 3 will cause the reaction rate to .

(Multiple Choice)

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Question 48

A first- order reaction has a rate constant of 0.33 min^-¹. It takes min for the reactant concentration to decrease from 0.13 M to 0.088 M.

(Multiple Choice)

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Question 49

The overall order of a reaction is 2. The units of the rate constant for the reaction are .

(Multiple Choice)

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Question 50

SO₂Cl₂decomposes in the gas phase by the reaction SO₂Cl₂(g) →SO₂(g) + Cl₂(g) The reaction is first order in SO₂Cl₂and the rate constant is 3.0 × 10^-⁶s^-¹at 600 K. A vessel is charged with 3.3 atm of SO₂Cl₂at 600 K. The partial pressure of SO₂at 3.0 × 10⁵s is _ _ atm.

(Multiple Choice)

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Question 51

For a first- order reaction, a plot of versus is linear.

(Multiple Choice)

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Question 52

are used in automotive catalytic converters.

(Multiple Choice)

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Question 53

The reaction A - B is first order in [A]. Consider the following data. -The half- life of this reaction is s.

(Multiple Choice)

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Question 54

The rate law of the overall reaction is rate = k[A]². Which of the following will not increase the rate of the reaction?

(Multiple Choice)

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Question 55

The reaction A - B is first order in [A]. Consider the following data. -The concentration of A is M after 40.0 s.

(Multiple Choice)

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Question 56

Nitrogen fixation is a difficult process because .

(Multiple Choice)

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Question 57

Of the following, will lower the activation energy for a reaction.

(Multiple Choice)

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Question 58

The data in the table below were obtained for the reaction: 2 ClO₂(aq) + 2 OH^-(aq) →ClO₃^-(aq) + ClO₂^-(aq) + H₂O (1) -What is the order of the reaction with respect to ClO₂?

(Multiple Choice)

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Question 59

As the temperature of a reaction is increased, the rate of the reaction increases because the

(Multiple Choice)

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Question 60

Showing 41 - 60 of 110

Exam 14: Chemical Kinetics

The combustion of ethylene proceeds by the reaction C2H4 (g) + 3O2 (g) → 2CO2 (g) + 2H2O (g) When the rate of disappearance of O2 is 0.23 M s- 1, the rate of disappearance of C2H4 is M s- 1.

A burning splint will burn more vigorously in pure oxygen than in air because

Which substance in the reaction below either appears or disappears the fastest? 4NH3 + 7O2 → 4NO2 + 6H2O

The concentration of S2O82- remaining at 800 s is _ M.

The active site of nitrogenase is a cofactor that contains two transition metals. These transition metals are .

The rate law of a reaction is rate = k[D][X]. The units of the rate constant are _ _.

A particular first- order reaction has a rate constant of 1.35 × 102 s- 1 at 25°C. What is the magnitude of k at 75°C if Ea = 85.6 kJ/mol?

A reaction was found to be zero order in A. Increasing the concentration of A by a factor of 3 will cause the reaction rate to .

A first- order reaction has a rate constant of 0.33 min- 1. It takes min for the reactant concentration to decrease from 0.13 M to 0.088 M.

The overall order of a reaction is 2. The units of the rate constant for the reaction are .

SO2Cl2 decomposes in the gas phase by the reaction SO2Cl2 (g) →SO2 (g) + Cl2 (g) The reaction is first order in SO2Cl2 and the rate constant is 3.0 × 10- 6 s- 1at 600 K. A vessel is charged with 3.3 atm of SO2Cl2 at 600 K. The partial pressure of SO2 at 3.0 × 105 s is _ _ atm.

For a first- order reaction, a plot of versus is linear.

are used in automotive catalytic converters.

The reaction A - B is first order in [A]. Consider the following data. -The half- life of this reaction is s.

The rate law of the overall reaction is rate = k[A]2. Which of the following will not increase the rate of the reaction?

The reaction A - B is first order in [A]. Consider the following data. -The concentration of A is M after 40.0 s.

Nitrogen fixation is a difficult process because .

Of the following, will lower the activation energy for a reaction.

The data in the table below were obtained for the reaction: 2 ClO2 (aq) + 2 OH- (aq) →ClO3- (aq) + ClO2- (aq) + H2O (1) -What is the order of the reaction with respect to ClO2?

As the temperature of a reaction is increased, the rate of the reaction increases because the

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The combustion of ethylene proceeds by the reaction C₂H₄(g) + 3O₂(g) → 2CO₂(g) + 2H₂O (g) When the rate of disappearance of O₂is 0.23 M s^-¹, the rate of disappearance of C₂H₄is M s^-¹.

Which substance in the reaction below either appears or disappears the fastest? 4NH₃+ 7O₂ → 4NO₂+ 6H₂O

The concentration of S₂O₈²^-remaining at 800 s is _ M.

A particular first- order reaction has a rate constant of 1.35 × 10²s^-¹at 25°C. What is the magnitude of k at 75°C if E_a= 85.6 kJ/mol?

A first- order reaction has a rate constant of 0.33 min^-¹. It takes min for the reactant concentration to decrease from 0.13 M to 0.088 M.

SO₂Cl₂decomposes in the gas phase by the reaction SO₂Cl₂(g) →SO₂(g) + Cl₂(g) The reaction is first order in SO₂Cl₂and the rate constant is 3.0 × 10^-⁶s^-¹at 600 K. A vessel is charged with 3.3 atm of SO₂Cl₂at 600 K. The partial pressure of SO₂at 3.0 × 10⁵s is _ _ atm.

The rate law of the overall reaction is rate = k[A]². Which of the following will not increase the rate of the reaction?

The data in the table below were obtained for the reaction: 2 ClO₂(aq) + 2 OH^-(aq) →ClO₃^-(aq) + ClO₂^-(aq) + H₂O (1) -What is the order of the reaction with respect to ClO₂?