The relative initial rates of the reaction AS1U1B12S1U1B0 + BS1U1B12S1U1B0 → products in vessels (a)-(d)are 1:1:4:4.Unshaded spheres represent AS1U1B12S1U1B0 molecules,and shaded spheres represent BS1U1B12S1U1B0 molecules present at the beginning of the reaction. -What is the rate law for this reaction?

A) Rate = k[A2]2 B) Rate = k[B2]2 C) Rate = k[A2][B2] D) Rate = k[A2]2[B2]2 A) Rate = k[A2]2 B) Rate = k[B2]2 C) Rate = k[A2][B2] D) Rate = k[A2]2[B2]2

The reaction between chlorine and nitric oxide to form nitrosyl chloride is shown below.If the reaction rate doubles when the concentration of Cl2 is doubled and the rate quadruples when the concentration of NO is doubled,by what factor will the rate increase if both concentrations,NO and Cl2,are doubled? Cl2(g)+ 2 NO(g)→ 2 NOCl(g)

A) 2 B) 4 C) 8 D) 6 A) 2 B) 4 C) 8 D) 6

Nitrogen dioxide decomposes at 300°C via a second-order process to produce nitrogen monoxide and oxygen according to the following chemical equation. 2 NO2(g)→ 2 NO(g)+ O2(g). A sample of NO2(g)is initially placed in a 2.50-L reaction vessel at 300°C.If the half-life and the rate constant at 300°C are 11 seconds and 0.54 M-1 s-1,respectively,how many moles of NO2 were in the original sample?

A) 0.17 mol B) 0.42 mol C) 5.9 mol D) 15 mol A) 0.17 mol B) 0.42 mol C) 5.9 mol D) 15 mol

The hydrolysis of tert-butyl chloride is given in the reaction below: (CH3)3CCl(aq)+ H2O(l)→ (CH3)3COH(aq)+ H+(aq)+ Cl-(aq) If the rate law is: Rate = k[(CH3)3CCl],what is the order of the reaction with respect to water?

A) zero B) first C) second D) third A) zero B) first C) second D) third

The second-order reaction,2 Mn(CO)5 → Mn2(CO)10 has a rate constant equal to 3.0 × 109 M-1s-1 at 25°C.If the initial concentration of Mn(CO)5 is 1.0 × 10-5 M,how long will it take for 90.% of the reactant to disappear?

A) 3.3 × 10-16 s B) 3.7 × 10-15 s C) 3.0 × 10-4 s D) 3.0 × 103 s A) 3.3 × 10-16 s B) 3.7 × 10-15 s C) 3.0 × 10-4 s D) 3.0 × 103 s

The half life of the reaction shown below is found not to depend on the concentration of H2O2(aq). 2 H2O2(aq)→ 2 H2O(l)+ O2(g) What is the order of this reaction?

A) zeroth B) first C) second D) third A) zeroth B) first C) second D) third

The aquation of tris(1,10-phenanthroline)iron(II)in acid solution takes place according to the equation: Fe(phen)32+ + 3 H3O+ + 3 H2O → Fe(H2O)62+ + 3 phenH+ If the activation energy,Ea,is 126 kJ/mol and the rate constant at 30°C is 9.8 × 10-3 min-1,what is the frequency factor,A?

A) 2 × 10-24 min-1 B) 2 × 10-20 min-1 C) 5 × 1019 min-1 D) 5 × 1023 min-1 A) 2 × 10-24 min-1 B) 2 × 10-20 min-1 C) 5 × 1019 min-1 D) 5 × 1023 min-1

The following set of data was obtained by the method of initial rates for the reaction: BrO3-(aq)+ 5 Br-(aq)+ 6 H+(aq)→ 3 Br2(aq)+ 3 H2O(l). Calculate the initial rate when BrO3- is 0.30 M,Br- is 0.050 M,and H+ is 0.15 M.

A) 6.1 × 10-5 M/s B) 2.7 × 10-3 M/s C) 5.3 × 10-2 M/s D) 8.4 × 10-2 M/s A) 6.1 × 10-5 M/s B) 2.7 × 10-3 M/s C) 5.3 × 10-2 M/s D) 8.4 × 10-2 M/s

Exam 13: Chemical Kinetics

The first-order reaction,SO₂Cl₂ → SO₂ + Cl₂,has a rate constant equal to 2.20 × 10^-5 s^-1 at 593 K.What percentage of the initial amount of SO₂Cl₂ will remain after 2.00 hours?

(Multiple Choice)

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Question 141

The relative initial rates of the reaction A₂ + B₂ → products in vessels (a)-(d)are 1:1:4:4.Unshaded spheres represent A₂ molecules,and shaded spheres represent B₂ molecules present at the beginning of the reaction. -What is the rate law for this reaction?

(Multiple Choice)

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Question 142

The rate constant,k,for a first-order reaction is equal to 4.2 × 10^-4 s^-1.What is the half-life for the reaction?

(Multiple Choice)

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Question 143

Which of the following does not affect the rate of a bimolecular reaction?

(Multiple Choice)

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Question 144

The reaction shown below has the rate law: Rate = k[BrO₃^-][Br^-][H⁺]².The order of reaction with respect to H⁺ is and the overall order is . BrO₃^-(aq)+ 5 Br^-(aq)+ 6 H⁺(aq)→ 3 Br₂(aq)+ 3 H₂O(l)

(Short Answer)

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Question 145

The reaction between chlorine and nitric oxide to form nitrosyl chloride is shown below.If the reaction rate doubles when the concentration of Cl₂ is doubled and the rate quadruples when the concentration of NO is doubled,by what factor will the rate increase if both concentrations,NO and Cl₂,are doubled? Cl₂(g)+ 2 NO(g)→ 2 NOCl(g)

(Multiple Choice)

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Question 146

-Which of the elementary reactions shown above has a molecularity of three?

(Multiple Choice)

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Question 147

Nitrogen dioxide decomposes at 300°C via a second-order process to produce nitrogen monoxide and oxygen according to the following chemical equation. 2 NO₂(g)→ 2 NO(g)+ O₂(g). A sample of NO₂(g)is initially placed in a 2.50-L reaction vessel at 300°C.If the half-life and the rate constant at 300°C are 11 seconds and 0.54 M^-1 s^-1,respectively,how many moles of NO₂ were in the original sample?

(Multiple Choice)

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Question 148

What is the rate law for the elementary reaction shown below? 2 HI → H₂ + I₂

(Multiple Choice)

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Question 149

The hydrolysis of tert-butyl chloride is given in the reaction below: (CH₃)₃CCl(aq)+ H₂O(l)→ (CH₃)₃COH(aq)+ H⁺(aq)+ Cl^-(aq) If the rate law is: Rate = k[(CH₃)₃CCl],what is the order of the reaction with respect to water?

(Multiple Choice)

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Question 150

According to kinetic molecular theory,which of the following will decrease the rate of reaction?

(Multiple Choice)

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Question 151

Molecular hydrogen can be made from methane gas by the reaction below.How is the rate of disappearance of CH₄ related to the rate of appearance of H₂? - = ? CH₄ (g)+ H₂O (l)→ CO (g)+ 3H₂ (g)

(Multiple Choice)

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Question 152

The second-order reaction,2 Mn(CO)₅ → Mn₂(CO)₁₀ has a rate constant equal to 3.0 × 10⁹ M^-1s^-1 at 25°C.If the initial concentration of Mn(CO)₅ is 1.0 × 10^-5 M,how long will it take for 90.% of the reactant to disappear?

(Multiple Choice)

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Question 153

The half life of the reaction shown below is found not to depend on the concentration of H₂O₂(aq). 2 H₂O₂(aq)→ 2 H₂O(l)+ O₂(g) What is the order of this reaction?

(Multiple Choice)

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Question 154

Biological reactions are catalyzed by

(Multiple Choice)

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Question 155

The aquation of tris(1,10-phenanthroline)iron(II)in acid solution takes place according to the equation: Fe(phen)₃²⁺ + 3 H₃O⁺ + 3 H₂O → Fe(H₂O)₆²⁺ + 3 phenH⁺ If the activation energy,E_a,is 126 kJ/mol and the rate constant at 30°C is 9.8 × 10^-3 min^-1,what is the frequency factor,A?

(Multiple Choice)

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Question 156

At an elevated temperature the decomposition of a gaseous oxide,AO₂ occurs with a rate constant,k = 0.54 M^-1s^-1.If the half-life of this reaction is 926 seconds when [AO₂] = 2.0 × 10^-3 M and 462 seconds when [AO₂] = 4.0 × 10^-3 M,this reaction is ________ order.

(Short Answer)

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Question 157

The following set of data was obtained by the method of initial rates for the reaction: BrO₃^-(aq)+ 5 Br^-(aq)+ 6 H⁺(aq)→ 3 Br₂(aq)+ 3 H₂O(l). Calculate the initial rate when BrO₃^- is 0.30 M,Br^- is 0.050 M,and H⁺ is 0.15 M.

(Multiple Choice)

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Question 158

When the temperature of a gas whose activation energy is 55 kJ/mol is increased from 300 K to 320 K,the fraction of collisions with sufficient energy to react

(Multiple Choice)

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Question 159

The following reaction is first order,C₂H₆ → 2 CH₃.If the rate constant is equal to 5.5 × 10^-4 s^-1 at 1000 K,how long will it take for 0.35 mol of C₂H₆ in a 1.00 L container to decrease to 0.25 mol in the same container?

(Multiple Choice)

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Question 160

Showing 141 - 160 of 190

The first-order reaction,SO₂Cl₂ → SO₂ + Cl₂,has a rate constant equal to 2.20 × 10^-5 s^-1 at 593 K.What percentage of the initial amount of SO₂Cl₂ will remain after 2.00 hours?

The relative initial rates of the reaction A₂ + B₂ → products in vessels (a)-(d)are 1:1:4:4.Unshaded spheres represent A₂ molecules,and shaded spheres represent B₂ molecules present at the beginning of the reaction. -What is the rate law for this reaction?

The rate constant,k,for a first-order reaction is equal to 4.2 × 10^-4 s^-1.What is the half-life for the reaction?

Which of the following does not affect the rate of a bimolecular reaction?

The reaction shown below has the rate law: Rate = k[BrO₃^-][Br^-][H⁺]².The order of reaction with respect to H⁺ is and the overall order is . BrO₃^-(aq)+ 5 Br^-(aq)+ 6 H⁺(aq)→ 3 Br₂(aq)+ 3 H₂O(l)

-Which of the elementary reactions shown above has a molecularity of three?

What is the rate law for the elementary reaction shown below? 2 HI → H₂ + I₂

The hydrolysis of tert-butyl chloride is given in the reaction below: (CH₃)₃CCl(aq)+ H₂O(l)→ (CH₃)₃COH(aq)+ H⁺(aq)+ Cl^-(aq) If the rate law is: Rate = k[(CH₃)₃CCl],what is the order of the reaction with respect to water?

According to kinetic molecular theory,which of the following will decrease the rate of reaction?

Molecular hydrogen can be made from methane gas by the reaction below.How is the rate of disappearance of CH₄ related to the rate of appearance of H₂? - = ? CH₄ (g)+ H₂O (l)→ CO (g)+ 3H₂ (g)

The second-order reaction,2 Mn(CO)₅ → Mn₂(CO)₁₀ has a rate constant equal to 3.0 × 10⁹ M^-1s^-1 at 25°C.If the initial concentration of Mn(CO)₅ is 1.0 × 10^-5 M,how long will it take for 90.% of the reactant to disappear?

The half life of the reaction shown below is found not to depend on the concentration of H₂O₂(aq). 2 H₂O₂(aq)→ 2 H₂O(l)+ O₂(g) What is the order of this reaction?

Biological reactions are catalyzed by

At an elevated temperature the decomposition of a gaseous oxide,AO₂ occurs with a rate constant,k = 0.54 M^-1s^-1.If the half-life of this reaction is 926 seconds when [AO₂] = 2.0 × 10^-3 M and 462 seconds when [AO₂] = 4.0 × 10^-3 M,this reaction is ________ order.

The following set of data was obtained by the method of initial rates for the reaction: BrO₃^-(aq)+ 5 Br^-(aq)+ 6 H⁺(aq)→ 3 Br₂(aq)+ 3 H₂O(l). Calculate the initial rate when BrO₃^- is 0.30 M,Br^- is 0.050 M,and H⁺ is 0.15 M.

When the temperature of a gas whose activation energy is 55 kJ/mol is increased from 300 K to 320 K,the fraction of collisions with sufficient energy to react

The following reaction is first order,C₂H₆ → 2 CH₃.If the rate constant is equal to 5.5 × 10^-4 s^-1 at 1000 K,how long will it take for 0.35 mol of C₂H₆ in a 1.00 L container to decrease to 0.25 mol in the same container?

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Exam 13: Chemical Kinetics

The first-order reaction,SO2Cl2 → SO2 + Cl2,has a rate constant equal to 2.20 × 10-5 s-1 at 593 K.What percentage of the initial amount of SO2Cl2 will remain after 2.00 hours?

The relative initial rates of the reaction A2 + B2 → products in vessels (a)-(d)are 1:1:4:4.Unshaded spheres represent A2 molecules,and shaded spheres represent B2 molecules present at the beginning of the reaction. -What is the rate law for this reaction?

The rate constant,k,for a first-order reaction is equal to 4.2 × 10-4 s-1.What is the half-life for the reaction?

Which of the following does not affect the rate of a bimolecular reaction?

The reaction shown below has the rate law: Rate = k[BrO3-][Br-][H+]2.The order of reaction with respect to H+ is ________ and the overall order is ________. BrO3-(aq)+ 5 Br-(aq)+ 6 H+(aq)→ 3 Br2(aq)+ 3 H2O(l)

-Which of the elementary reactions shown above has a molecularity of three?

What is the rate law for the elementary reaction shown below? 2 HI → H2 + I2

The hydrolysis of tert-butyl chloride is given in the reaction below: (CH3)3CCl(aq)+ H2O(l)→ (CH3)3COH(aq)+ H+(aq)+ Cl-(aq) If the rate law is: Rate = k[(CH3)3CCl],what is the order of the reaction with respect to water?

According to kinetic molecular theory,which of the following will decrease the rate of reaction?

Molecular hydrogen can be made from methane gas by the reaction below.How is the rate of disappearance of CH4 related to the rate of appearance of H2? - = ? CH4 (g)+ H2O (l)→ CO (g)+ 3H2 (g)

The second-order reaction,2 Mn(CO)5 → Mn2(CO)10 has a rate constant equal to 3.0 × 109 M-1s-1 at 25°C.If the initial concentration of Mn(CO)5 is 1.0 × 10-5 M,how long will it take for 90.% of the reactant to disappear?

The half life of the reaction shown below is found not to depend on the concentration of H2O2(aq). 2 H2O2(aq)→ 2 H2O(l)+ O2(g) What is the order of this reaction?

Biological reactions are catalyzed by

The aquation of tris(1,10-phenanthroline)iron(II)in acid solution takes place according to the equation: Fe(phen)32+ + 3 H3O+ + 3 H2O → Fe(H2O)62+ + 3 phenH+ If the activation energy,Ea,is 126 kJ/mol and the rate constant at 30°C is 9.8 × 10-3 min-1,what is the frequency factor,A?

At an elevated temperature the decomposition of a gaseous oxide,AO2 occurs with a rate constant,k = 0.54 M-1s-1.If the half-life of this reaction is 926 seconds when [AO2] = 2.0 × 10-3 M and 462 seconds when [AO2] = 4.0 × 10-3 M,this reaction is ________ order.

The following set of data was obtained by the method of initial rates for the reaction: BrO3-(aq)+ 5 Br-(aq)+ 6 H+(aq)→ 3 Br2(aq)+ 3 H2O(l). Calculate the initial rate when BrO3- is 0.30 M,Br- is 0.050 M,and H+ is 0.15 M.

When the temperature of a gas whose activation energy is 55 kJ/mol is increased from 300 K to 320 K,the fraction of collisions with sufficient energy to react

The following reaction is first order,C2H6 → 2 CH3.If the rate constant is equal to 5.5 × 10-4 s-1 at 1000 K,how long will it take for 0.35 mol of C2H6 in a 1.00 L container to decrease to 0.25 mol in the same container?

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The first-order reaction,SO₂Cl₂ → SO₂ + Cl₂,has a rate constant equal to 2.20 × 10^-5 s^-1 at 593 K.What percentage of the initial amount of SO₂Cl₂ will remain after 2.00 hours?

The relative initial rates of the reaction A₂ + B₂ → products in vessels (a)-(d)are 1:1:4:4.Unshaded spheres represent A₂ molecules,and shaded spheres represent B₂ molecules present at the beginning of the reaction. -What is the rate law for this reaction?

The rate constant,k,for a first-order reaction is equal to 4.2 × 10^-4 s^-1.What is the half-life for the reaction?

The reaction shown below has the rate law: Rate = k[BrO₃^-][Br^-][H⁺]².The order of reaction with respect to H⁺ is and the overall order is . BrO₃^-(aq)+ 5 Br^-(aq)+ 6 H⁺(aq)→ 3 Br₂(aq)+ 3 H₂O(l)

What is the rate law for the elementary reaction shown below? 2 HI → H₂ + I₂

The hydrolysis of tert-butyl chloride is given in the reaction below: (CH₃)₃CCl(aq)+ H₂O(l)→ (CH₃)₃COH(aq)+ H⁺(aq)+ Cl^-(aq) If the rate law is: Rate = k[(CH₃)₃CCl],what is the order of the reaction with respect to water?

Molecular hydrogen can be made from methane gas by the reaction below.How is the rate of disappearance of CH₄ related to the rate of appearance of H₂? - = ? CH₄ (g)+ H₂O (l)→ CO (g)+ 3H₂ (g)

The second-order reaction,2 Mn(CO)₅ → Mn₂(CO)₁₀ has a rate constant equal to 3.0 × 10⁹ M^-1s^-1 at 25°C.If the initial concentration of Mn(CO)₅ is 1.0 × 10^-5 M,how long will it take for 90.% of the reactant to disappear?

The half life of the reaction shown below is found not to depend on the concentration of H₂O₂(aq). 2 H₂O₂(aq)→ 2 H₂O(l)+ O₂(g) What is the order of this reaction?

At an elevated temperature the decomposition of a gaseous oxide,AO₂ occurs with a rate constant,k = 0.54 M^-1s^-1.If the half-life of this reaction is 926 seconds when [AO₂] = 2.0 × 10^-3 M and 462 seconds when [AO₂] = 4.0 × 10^-3 M,this reaction is ________ order.

The following set of data was obtained by the method of initial rates for the reaction: BrO₃^-(aq)+ 5 Br^-(aq)+ 6 H⁺(aq)→ 3 Br₂(aq)+ 3 H₂O(l). Calculate the initial rate when BrO₃^- is 0.30 M,Br^- is 0.050 M,and H⁺ is 0.15 M.

The following reaction is first order,C₂H₆ → 2 CH₃.If the rate constant is equal to 5.5 × 10^-4 s^-1 at 1000 K,how long will it take for 0.35 mol of C₂H₆ in a 1.00 L container to decrease to 0.25 mol in the same container?