# CHMA10H3 Lecture Notes - Lecture 12: Pearson Education, Polarimeter, Chemical EquationExam

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Chemistry: A Molecular Approach, 2e (Tro)

Chapter 13 Chemical Kinetics

Multiple Choice Questions

1) Given the following balanced equation, determine the rate of reaction with respect to [SO2].

2 SO2 (g) + O2(g) ā 2 SO3(g)

A) Rate =

2

Ī[SO ]

1

2 Dt

ā

B) Rate =

2

Ī[SO ]

1

2t

+ļ

C) Rate =

2

Ī[SO ]

Dt

ā

D) Rate =

2

2 Ī[SO ]

t

+ļ

E) It is not possible to determine without more information.

Answer: A

Diff: 2 Page Ref: 13.2

2) Identify the methods used to monitor a reaction as it occurs in the reaction flask.

A) polarimeter

B) spectrometer

C) pressure measurement

D) none of the above

E) all of the above

Answer: E

Diff: 1 Page Ref: 13.2

3) Given the following balanced equation, determine the rate of reaction with respect to [O2].

2 SO2 (g) + O2(g) ā 2 SO3(g)

A) Rate =

2

Ī[O ]

1

2 Dt

ā

B) Rate =

2

Ī[O ]

1

2t

+ļ

C) Rate =

2

Ī[O ]

Dt

ā

D) Rate =

2

2 Ī[O ]

t

+ļ

E) It is not possible to determine without more information.

Answer: C

Diff: 2 Page Ref: 13.2

Only pages 1-3 are available for preview. Some parts have been intentionally blurred.

2

Copyright (c) 2011 Pearson Education, Inc.

4) Given the following balanced equation, determine the rate of reaction with respect to [SO3].

2 SO2 (g) + O2(g) ā 2 SO3(g)

A) Rate =

3

Ī[SO ]

1

2 Dt

ā

B) Rate =

3

Ī[SO ]

1

2t

+ļ

C) Rate =

3

Ī[SO ]

Dt

ā

D) Rate =

3

2 Ī[SO ]

t

+ļ

E) It is not possible to determine without more information.

Answer: B

Diff: 2 Page Ref: 13.2

5) Given the following balanced equation, determine the rate of reaction with respect to [NOCl].

2 NO(g) + Cl2(g) ā 2 NOCl(g)

A) Rate =

1Ī[NOCl]

2t

āļ

B) Rate =

1Ī[NOCl]

2t

+ļ

C) Rate =

1Ī[NO]

2t

āļ

D) Rate =

2 Ī[NOCl]

t

āļ

E) It is not possible to determine without more information.

Answer: B

Diff: 2 Page Ref: 13.2

Only pages 1-3 are available for preview. Some parts have been intentionally blurred.

3

Copyright (c) 2011 Pearson Education, Inc.

6) Given the following balanced equation, determine the rate of reaction with respect to [O2].

2 O3(g) ā 3 O2(g)

A) Rate =

2

2 Ī[O ]

t

āļ

B) Rate =

2

Ī[O ]

2

3t

āļ

C) Rate =

2

Ī[O ]

1

3 Dt

+

D) Rate =

2

3 Ī[O ]

t

+ļ

E) It is not possible to determine without more information.

Answer: C

Diff: 2 Page Ref: 13.2

7) Given the following balanced equation, determine the rate of reaction with respect to [H2].

N2(g) + 3 H2(g) ā 2 NH3(g)

A) Rate =

2

3 Ī[H ]

t

+ļ

B) Rate =

2

Ī[H ]

2

3t

āļ

C) Rate =

2

Ī[H ]

3

2t

+ļ

D) Rate =

2

Ī[H ]

1

3t

āļ

E) It is not possible to determine without more information.

Answer: D

Diff: 2 Page Ref: 13.2

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