Question 1

The rate of disappearance of HBr in the gas phase reaction 2HBr(g) →   (g) +   (g)
Is 0.311 mol L-1   at 150 °C. The rate of appearance of   is ________ mol L-1   .

Accepted Answer

A)  1.61 
B)  0.0967 
C)  0.558 
D)  0.622 
E)  0.156 
A)  1.61 
B)  0.0967 
C)  0.558 
D)  0.622 
E)  0.156

Question 2

Given the following balanced equation, determine the rate of reaction with respect to [O2]. If the rate of formation of O2 is 6.94 × 10-1 mol L-1 s-1, what is the rate of the loss of O3? 2O3(g) → 3O2(g)

Accepted Answer

A)  0.463 mol L-1 s-1 
B)  1.04 mol L-1 s-1 
C)  2.08 mol L-1 s-1 
D)  0.231 mol L-1 s-1 
E)  4.16 mol L-1 s-1 
A)  0.463 mol L-1 s-1 
B)  1.04 mol L-1 s-1 
C)  2.08 mol L-1 s-1 
D)  0.231 mol L-1 s-1 
E)  4.16 mol L-1 s-1

Question 3

Which of the following statements is FALSE?

Accepted Answer

A)  The average rate of a reaction decreases during a reaction. 
B)  It is not possible to determine the rate of a reaction from its balanced equation. 
C)  The rate of zero-order reactions is not dependent on concentration. 
D)  The half-life of a first-order reaction is dependent on the initial concentration of reactant. 
E)  None of the above statements is false. 
A)  The average rate of a reaction decreases during a reaction. 
B)  It is not possible to determine the rate of a reaction from its balanced equation. 
C)  The rate of zero-order reactions is not dependent on concentration. 
D)  The half-life of a first-order reaction is dependent on the initial concentration of reactant. 
E)  None of the above statements is false.

Question 4

Which rate law is termolecular?

Accepted Answer

A)  rate = k[A][B]2 
B)  rate = k[A][B] 
C)  rate = k[A] 
D)  rate = k[A][B][C][D] 
E)  rate = k[A]2 
A)  rate = k[A][B]2 
B)  rate = k[A][B] 
C)  rate = k[A] 
D)  rate = k[A][B][C][D] 
E)  rate = k[A]2

Question 5

Given the following balanced equation, determine the rate of reaction with respect to [NOCl]. If the rate of Cl2 loss is 4.84 × 10-2 mol L-1 s-1, what is the rate of formation of NOCl? 2NO(g) + Cl2(g) → 2NOCl(g)

Accepted Answer

A)  4.84 × 10-2 mol L-1 s-1 
B)  2.42 × 10-2 mol L-1 s-1 
C)  1.45 × 10-1 mol L-1 s-1 
D)  9.68 × 10-2 mol L-1 s-1 
E)  1.61 × 10-2 mol L-1 s-1 
A)  4.84 × 10-2 mol L-1 s-1 
B)  2.42 × 10-2 mol L-1 s-1 
C)  1.45 × 10-1 mol L-1 s-1 
D)  9.68 × 10-2 mol L-1 s-1 
E)  1.61 × 10-2 mol L-1 s-1

Question 6

What is the overall order of the following reaction, given the rate law? 2NO(g) + H2(g) → N2(g) + 2H2O(g) Rate = k[NO]2[H2]

Accepted Answer

A)  1st order 
B)  2nd order 
C)  3rd order 
D)  4th order 
E)  0th order 
A)  1st order 
B)  2nd order 
C)  3rd order 
D)  4th order 
E)  0th order

Question 7

A reaction with an activation energy of 71.6 kJ mol-1 has a rate constant of 5.30 × 10 -6 L mol-1 s-1 at 298 K. At what temperature will the rate constant be 0.530 L mol-1 s-1?

Accepted Answer

A)  461 K 
B)  410 K 
C)  310 K 
D)  495 K 
E)  328 K 
A)  461 K 
B)  410 K 
C)  310 K 
D)  495 K 
E)  328 K

Question 8

A reaction with an activation energy of 61.0 kJ mol-1 has a rate constant of 0.0345 L mol-1 s-1 at 301 K. What is the rate constant at 401 K?

Accepted Answer

A)  1.92 L mol-1 s-1 
B)  7.90 × 10-5 L mol-1 s-1 
C)  0.0445 L mol-1 s-1 
D)  0.345 L mol-1 s-1 
E)  15.1 L mol-1 s-1 
A)  1.92 L mol-1 s-1 
B)  7.90 × 10-5 L mol-1 s-1 
C)  0.0445 L mol-1 s-1 
D)  0.345 L mol-1 s-1 
E)  15.1 L mol-1 s-1

Question 9

What is the difference between average reaction rate and instantaneous reaction rate?

Accepted Answer

An average reaction rate is determined u

Question 10

The decomposition of dinitrogen pentoxide is described by the chemical equation 2N2O5(g) → 4NO2(g) + O2(g).
If the rate of appearance of NO2 is equal to 0. 560 mol min-1 at a particular moment, what is the rate of appearance of O2 at that moment?

Accepted Answer

A)  0. 140 mol min-1 
B)  0. 280 mol min-1 
C)  1. 12 mol min-1 
D)  2.24 mol min-1 
A)  0. 140 mol min-1 
B)  0. 280 mol min-1 
C)  1. 12 mol min-1 
D)  2.24 mol min-1

The rate of disappearance of HBr in the gas phase reaction 2HBr(g) → (g) + (g) Is 0.311 mol L^-1 at 150 °C. The rate of appearance of is ________ mol L^-1 .

Given the following balanced equation, determine the rate of reaction with respect to [O₂]. If the rate of formation of O₂ is 6.94 × 10^-1 mol L^-1 s^-1, what is the rate of the loss of O₃? 2O₃(g) → 3O₂(g)

Which of the following statements is FALSE?

Which rate law is termolecular?

Given the following balanced equation, determine the rate of reaction with respect to [NOCl]. If the rate of Cl₂ loss is 4.84 × 10^-2 mol L^-1 s^-1, what is the rate of formation of NOCl? 2NO(g) + Cl₂(g) → 2NOCl(g)

What is the overall order of the following reaction, given the rate law? 2NO(g) + H₂(g) → N₂(g) + 2H₂O(g) Rate = k[NO]²[H₂]

A reaction with an activation energy of 71.6 kJ mol^-1 has a rate constant of 5.30 × 10 ^-6 L mol^-1 s^-1 at 298 K. At what temperature will the rate constant be 0.530 L mol^-1 s^-1?

A reaction with an activation energy of 61.0 kJ mol^-1 has a rate constant of 0.0345 L mol^-1 s^-1 at 301 K. What is the rate constant at 401 K?

What is the difference between average reaction rate and instantaneous reaction rate?

The decomposition of dinitrogen pentoxide is described by the chemical equation 2N₂O₅(g) → 4NO₂(g) + O₂(g). If the rate of appearance of NO₂ is equal to 0. 560 mol min^-1 at a particular moment, what is the rate of appearance of O₂ at that moment?

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Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

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Organic Chemistry I: Structures

Organic Chemistry Ii: Reactions

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Exam 13: Chemical Kinetics

The rate of disappearance of HBr in the gas phase reaction 2HBr(g) → (g) + (g) Is 0.311 mol L-1 at 150 °C. The rate of appearance of is ________ mol L-1 .

Given the following balanced equation, determine the rate of reaction with respect to [O2]. If the rate of formation of O2 is 6.94 × 10-1 mol L-1 s-1, what is the rate of the loss of O3? 2O3(g) → 3O2(g)

Which of the following statements is FALSE?

Which rate law is termolecular?

Given the following balanced equation, determine the rate of reaction with respect to [NOCl]. If the rate of Cl2 loss is 4.84 × 10-2 mol L-1 s-1, what is the rate of formation of NOCl? 2NO(g) + Cl2(g) → 2NOCl(g)

What is the overall order of the following reaction, given the rate law? 2NO(g) + H2(g) → N2(g) + 2H2O(g) Rate = k[NO]2[H2]

A reaction with an activation energy of 71.6 kJ mol-1 has a rate constant of 5.30 × 10 -6 L mol-1 s-1 at 298 K. At what temperature will the rate constant be 0.530 L mol-1 s-1?

A reaction with an activation energy of 61.0 kJ mol-1 has a rate constant of 0.0345 L mol-1 s-1 at 301 K. What is the rate constant at 401 K?

What is the difference between average reaction rate and instantaneous reaction rate?

The decomposition of dinitrogen pentoxide is described by the chemical equation 2N2O5(g) → 4NO2(g) + O2(g). If the rate of appearance of NO2 is equal to 0. 560 mol min-1 at a particular moment, what is the rate of appearance of O2 at that moment?

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules, Compounds, and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry Ii: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

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The rate of disappearance of HBr in the gas phase reaction 2HBr(g) → (g) + (g) Is 0.311 mol L^-1 at 150 °C. The rate of appearance of is ________ mol L^-1 .

Given the following balanced equation, determine the rate of reaction with respect to [O₂]. If the rate of formation of O₂ is 6.94 × 10^-1 mol L^-1 s^-1, what is the rate of the loss of O₃? 2O₃(g) → 3O₂(g)

Given the following balanced equation, determine the rate of reaction with respect to [NOCl]. If the rate of Cl₂ loss is 4.84 × 10^-2 mol L^-1 s^-1, what is the rate of formation of NOCl? 2NO(g) + Cl₂(g) → 2NOCl(g)

What is the overall order of the following reaction, given the rate law? 2NO(g) + H₂(g) → N₂(g) + 2H₂O(g) Rate = k[NO]²[H₂]

A reaction with an activation energy of 71.6 kJ mol^-1 has a rate constant of 5.30 × 10 ^-6 L mol^-1 s^-1 at 298 K. At what temperature will the rate constant be 0.530 L mol^-1 s^-1?

A reaction with an activation energy of 61.0 kJ mol^-1 has a rate constant of 0.0345 L mol^-1 s^-1 at 301 K. What is the rate constant at 401 K?

The decomposition of dinitrogen pentoxide is described by the chemical equation 2N₂O₅(g) → 4NO₂(g) + O₂(g). If the rate of appearance of NO₂ is equal to 0. 560 mol min^-1 at a particular moment, what is the rate of appearance of O₂ at that moment?