Chemistry with Access Code, Hybrid Edition
Chemistry with Access Code, Hybrid Edition
9th Edition
ISBN: 9781285188492
Author: Steven S. Zumdahl
Publisher: CENGAGE L
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Chapter 22, Problem 155CP

(a)

Interpretation Introduction

Interpretation: The effect on temperature on the stretching of rubber band is to be stated and whether the stretching is an exothermic or endothermic process is to be explained in terms of intermolecular forces. Also, the sign of ΔS and ΔG for stretching the rubber band is to be stated with the molecular explanation for the sign of ΔS for stretching.

Concept introduction: Rubber is a polymer (long chain molecules) made from organic compound isoprene. The molecules in rubber are arranged in a tangled up position than an aligned position and due to thermal motion they lose their alignment and go back to their tangled state and this is called an elastic contact caused by an entropic force.

To determine: The effect on temperature on the stretching of rubber band.

(b)

Interpretation Introduction

Interpretation: The effect on temperature on the stretching of rubber band is to be stated and whether the stretching is an exothermic or endothermic process is to be explained in terms of intermolecular forces. Also, the sign of ΔS and ΔG for stretching the rubber band is to be stated with the molecular explanation for the sign of ΔS for stretching.

Concept introduction: Rubber is a polymer (long chain molecules) made from organic compound isoprene. The molecules in rubber are arranged in a tangled up position than an aligned position and due to thermal motion they lose their alignment and go back to their tangled state and this is called an elastic contact caused by an entropic force.

To determine: The stretching is an exothermic or endothermic process.

(c)

Interpretation Introduction

Interpretation: The effect on temperature on the stretching of rubber band is to be stated and whether the stretching is an exothermic or endothermic process is to be explained in terms of intermolecular forces. Also, the sign of ΔS and ΔG for stretching the rubber band is to be stated with the molecular explanation for the sign of ΔS for stretching.

Concept introduction: Rubber is a polymer (long chain molecules) made from organic compound isoprene. The molecules in rubber are arranged in a tangled up position than an aligned position and due to thermal motion they lose their alignment and go back to their tangled state and this is called an elastic contact caused by an entropic force.

To determine: The above results in terms of intermolecular forces.

(d)

Interpretation Introduction

Interpretation: The effect on temperature on the stretching of rubber band is to be stated and whether the stretching is an exothermic or endothermic process is to be explained in terms of intermolecular forces. Also, the sign of ΔS and ΔG for stretching the rubber band is to be stated with the molecular explanation for the sign of ΔS for stretching.

Concept introduction: Rubber is a polymer (long chain molecules) made from organic compound isoprene. The molecules in rubber are arranged in a tangled up position than an aligned position and due to thermal motion they lose their alignment and go back to their tangled state and this is called an elastic contact caused by an entropic force.

To determine: The sign of ΔS and ΔG for stretching the rubber band.

(e)

Interpretation Introduction

Interpretation: The effect on temperature on the stretching of rubber band is to be stated and whether the stretching is an exothermic or endothermic process is to be explained in terms of intermolecular forces. Also, the sign of ΔS and ΔG for stretching the rubber band is to be stated with the molecular explanation for the sign of ΔS for stretching.

Concept introduction: Rubber is a polymer (long chain molecules) made from organic compound isoprene. The molecules in rubber are arranged in a tangled up position than an aligned position and due to thermal motion they lose their alignment and go back to their tangled state and this is called an elastic contact caused by an entropic force.

To determine: The molecular explanation for the sign of ΔS for stretching.

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Decide whether the statement is True or False
Compound ∆Hf (kJ/mole) ∆S (J/mole K) C2H4 52.4 219.3 C2H6 –84.68 229.2 SiO2 –910.7 41.5   HF –273.3 173.8 SiF4 –1615.0 282.8 NH3 –45.9 192.9 O2 1.88 2.43 NO 91.3 210.8 H2O(g) –241.8 188.8 For the following reactions, using the provided ∆H and ∆S data, determine whether each one would be spontaneous or nonspontaneous at 25°C. C2H4(g) + H2(g) --------à                                  C2H6(g)                 SiO2 + 4 HF(g) ------------->             SiF4 (g) + 2 H2O(g)               4 NH3(g)  +  5 O (g)  ---------> 4 NO(g) + 6 H2O(g)
Compound ∆Hf (kJ/mole) ∆S (J/mole K) C2H4 52.4 219.3 C2H6 –84.68 229.2 SiO2 –910.7 41.5   HF –273.3 173.8 SiF4 –1615.0 282.8 NH3 –45.9 192.9 O2 1.88 2.43 NO 91.3 210.8 H2O(g) –241.8 188.8     4 NH3 + 5 O2 -> 4 NO + 6 H2O

Chapter 22 Solutions

Chemistry with Access Code, Hybrid Edition

Ch. 22 - Prob. 11RQCh. 22 - Describe the structural differences between DNA...Ch. 22 - Prob. 1QCh. 22 - Prob. 2QCh. 22 - Prob. 3QCh. 22 - Prob. 4QCh. 22 - Prob. 5QCh. 22 - Prob. 6QCh. 22 - Prob. 7QCh. 22 - Give an example reaction that would yield the...Ch. 22 - Prob. 9QCh. 22 - Prob. 10QCh. 22 - Prob. 11QCh. 22 - Prob. 12QCh. 22 - Prob. 13ECh. 22 - Prob. 14ECh. 22 - Draw all the structural isomers for C8H18 that...Ch. 22 - Draw all the structural isomers for C8H18 that...Ch. 22 - Prob. 17ECh. 22 - Prob. 18ECh. 22 - Draw the structural formula for each of the...Ch. 22 - Prob. 20ECh. 22 - Prob. 21ECh. 22 - Name each of the following cyclic alkanes, and...Ch. 22 - Prob. 23ECh. 22 - Draw the structures for two examples of...Ch. 22 - Name each of the following alkenes. a. CH2 = CH ...Ch. 22 - Name each of the following alkenes or alkynes. a....Ch. 22 - Prob. 27ECh. 22 - Give the structure for each of the following. a....Ch. 22 - Prob. 29ECh. 22 - Cumene is the starting material for the industrial...Ch. 22 - Name each of the following. a. b. CH3CH2CH2CCl3 c....Ch. 22 - Prob. 32ECh. 22 - There is only one compound that is named...Ch. 22 - Prob. 34ECh. 22 - Prob. 35ECh. 22 - Prob. 36ECh. 22 - Draw all the structural isomers of C5H10. Ignore...Ch. 22 - Prob. 38ECh. 22 - Draw all the structural and geometrical (cistrans)...Ch. 22 - Draw all the structural and geometrical (cistrans)...Ch. 22 - Draw all structural and geometrical (cistrans)...Ch. 22 - Prob. 42ECh. 22 - Prob. 43ECh. 22 - Prob. 44ECh. 22 - If one hydrogen in a hydrocarbon is replaced by a...Ch. 22 - There are three isomers of dichlorobenzene, one of...Ch. 22 - Identify each of the following compounds as a...Ch. 22 - Prob. 48ECh. 22 - Mimosine is a natural product found in large...Ch. 22 - Minoxidil (C9H15N5O) is a compound produced by...Ch. 22 - For each of the following alcohols, give the...Ch. 22 - Prob. 52ECh. 22 - Prob. 53ECh. 22 - Prob. 54ECh. 22 - Prob. 55ECh. 22 - Prob. 56ECh. 22 - Prob. 57ECh. 22 - Prob. 58ECh. 22 - Prob. 59ECh. 22 - Prob. 60ECh. 22 - Prob. 61ECh. 22 - Prob. 62ECh. 22 - Prob. 63ECh. 22 - Prob. 64ECh. 22 - Prob. 65ECh. 22 - Prob. 66ECh. 22 - Prob. 67ECh. 22 - Prob. 68ECh. 22 - Prob. 69ECh. 22 - Prob. 70ECh. 22 - Prob. 71ECh. 22 - Prob. 72ECh. 22 - Super glue contains methyl cyanoacrylate, which...Ch. 22 - Prob. 74ECh. 22 - Prob. 75ECh. 22 - Prob. 76ECh. 22 - Prob. 77ECh. 22 - Prob. 78ECh. 22 - Prob. 79ECh. 22 - Prob. 80ECh. 22 - Prob. 81ECh. 22 - Prob. 82ECh. 22 - Prob. 83ECh. 22 - Prob. 84ECh. 22 - Aspartame, the artificial sweetener marketed under...Ch. 22 - Prob. 86ECh. 22 - Prob. 87ECh. 22 - Draw the structures of the tripeptides glyalaser...Ch. 22 - Prob. 89ECh. 22 - Prob. 90ECh. 22 - Give an example of amino acids that could give...Ch. 22 - What types of interactions can occur between the...Ch. 22 - Prob. 93ECh. 22 - Prob. 94ECh. 22 - Prob. 95ECh. 22 - Prob. 96ECh. 22 - Prob. 97ECh. 22 - Prob. 98ECh. 22 - Prob. 99ECh. 22 - Prob. 100ECh. 22 - Prob. 101ECh. 22 - Prob. 102ECh. 22 - Prob. 103ECh. 22 - Prob. 104ECh. 22 - Prob. 105ECh. 22 - Prob. 106ECh. 22 - Prob. 107ECh. 22 - Prob. 108ECh. 22 - The base sequences in mRNA that code for certain...Ch. 22 - Prob. 110ECh. 22 - Prob. 111AECh. 22 - Prob. 112AECh. 22 - Prob. 113AECh. 22 - Prob. 114AECh. 22 - Prob. 115AECh. 22 - Prob. 116AECh. 22 - Explain why methyl alcohol is soluble in water in...Ch. 22 - Prob. 118AECh. 22 - Prob. 119AECh. 22 - Prob. 120AECh. 22 - Prob. 121AECh. 22 - Prob. 122AECh. 22 - Prob. 123AECh. 22 - Prob. 124AECh. 22 - Prob. 125AECh. 22 - Prob. 126AECh. 22 - Prob. 127AECh. 22 - Prob. 128AECh. 22 - Prob. 129AECh. 22 - a. Use bond energies (see Table 3-3) to estimate H...Ch. 22 - Prob. 131AECh. 22 - Prob. 132AECh. 22 - All amino acids have at least two functional...Ch. 22 - Prob. 134AECh. 22 - Prob. 135AECh. 22 - In glycine, the carboxylic acid group has Ka = 4.3...Ch. 22 - Name each of the following alkanes. a....Ch. 22 - Prob. 138CWPCh. 22 - Name each of the following cyclic alkanes. a. b....Ch. 22 - Name each of the following alkenes and alkynes. a....Ch. 22 - a. Name each of the following alcohols. b. Name...Ch. 22 - Prob. 142CWPCh. 22 - Prob. 143CWPCh. 22 - Prob. 144CWPCh. 22 - Prob. 145CPCh. 22 - Prob. 146CPCh. 22 - Prob. 147CPCh. 22 - Consider a sample of a hydrocarbon at 0.959 atm...Ch. 22 - Prob. 149CPCh. 22 - Prob. 150CPCh. 22 - Prob. 151CPCh. 22 - Prob. 152CPCh. 22 - Prob. 153CPCh. 22 - Prob. 154CPCh. 22 - Prob. 155CPCh. 22 - Alcohols are very useful starting materials for...Ch. 22 - A chemical breathalyzer test works because ethanol...Ch. 22 - Estradiol is a female hormone with the following...Ch. 22 - Prob. 159IPCh. 22 - Prob. 160IPCh. 22 - Prob. 161MPCh. 22 - Prob. 162MP
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