Chemistry: An Atoms First Approach
2nd Edition
ISBN: 9781305079243
Author: Steven S. Zumdahl, Susan A. Zumdahl
Publisher: Cengage Learning
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Textbook Question
Chapter 21, Problem 155CP
Stretch a rubber band while holding it gently to your lips. Then slowly let it relax while still in contact with your lips.
a. What happens to the temperature of the rubber band on stretching?
b. Is the stretching an exothermic or endothermic process?
c. Explain the above result in terms of intermolecular forces.
d. What is the sign of ∆S and ∆G for stretching the rubber hand?
e. Give the molecular explanation for the sign of ∆S for stretching.
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Essentials of General, Organic, and Biochemistry
Denise Guinn
THIRD EDITION
The table lists the specific heat values for brick, ethanol, and wood.
Specific Heats of Substances
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Essentials of General, Organic, and Biochemistry
Denise Guinn
THIRD EDITION
presented by Macmillan Learning
The table lists the specific heat values for brick, ethanol, and wood.
Specific Heats of Substances
cal
Specific Heat
g. °C
Substance
Brick
0.20
Ethanol
0.58
Wood
0.10
Calculate the amount of heat, in calories, that must be added to warm 62.6 g of brick from 20.2 °C to 50.1 °C. Assume no
changes in state occur during this change in temperature.
heat added:
cal
Calculate the amount of heat, in calories, that must be added to warm 62.6 g of ethanol from 20.2 °C to 50.1 °C. Assume no
changes in state occur during this change in temperature.
Chapter 21 Solutions
Chemistry: An Atoms First Approach
Ch. 21 - What is a hydrocarbon? What is the difference...Ch. 21 - Prob. 2RQCh. 21 - Prob. 3RQCh. 21 - Summarize the nomenclature rules for alkanes,...Ch. 21 - What functional group distinguishes each of the...Ch. 21 - Distinguish between isomerism and resonance....Ch. 21 - Prob. 7RQCh. 21 - Prob. 8RQCh. 21 - Prob. 9RQCh. 21 - Prob. 10RQ
Ch. 21 - Prob. 11RQCh. 21 - Prob. 12RQCh. 21 - Prob. 1QCh. 21 - Prob. 2QCh. 21 - What is wrong with the following names? Give the...Ch. 21 - Prob. 4QCh. 21 - Prob. 5QCh. 21 - Prob. 6QCh. 21 - Prob. 7QCh. 21 - Prob. 8QCh. 21 - Prob. 9QCh. 21 - Prob. 10QCh. 21 - Prob. 11QCh. 21 - Prob. 12QCh. 21 - Prob. 13ECh. 21 - Prob. 14ECh. 21 - Draw all the structural isomers for C8H18 that...Ch. 21 - Draw all the structural isomers for C8H18 that...Ch. 21 - Prob. 17ECh. 21 - Prob. 18ECh. 21 - Draw the structural formula for each of the...Ch. 21 - Prob. 20ECh. 21 - Prob. 21ECh. 21 - Prob. 22ECh. 21 - Prob. 23ECh. 21 - Prob. 24ECh. 21 - Name each of the following alkenes. a. CH2 = CH ...Ch. 21 - Name each of the following alkenes or alkynes. a....Ch. 21 - Prob. 27ECh. 21 - Prob. 28ECh. 21 - Prob. 29ECh. 21 - Prob. 30ECh. 21 - Name each of the following. a. b. CH3CH2CH2CCl3 c....Ch. 21 - Prob. 32ECh. 21 - There is only one compound that is named...Ch. 21 - Prob. 34ECh. 21 - Prob. 35ECh. 21 - Prob. 36ECh. 21 - Prob. 37ECh. 21 - Prob. 38ECh. 21 - Prob. 39ECh. 21 - Prob. 40ECh. 21 - Draw all structural and geometrical (cistrans)...Ch. 21 - Prob. 42ECh. 21 - Prob. 43ECh. 21 - Prob. 44ECh. 21 - If one hydrogen in a hydrocarbon is replaced by a...Ch. 21 - There are three isomers of dichlorobenzene, one of...Ch. 21 - Prob. 47ECh. 21 - Prob. 48ECh. 21 - Prob. 49ECh. 21 - Minoxidil (C9H15N5O) is a compound produced by...Ch. 21 - Prob. 51ECh. 21 - Prob. 52ECh. 21 - Name all the alcohols that have the formula...Ch. 21 - Prob. 54ECh. 21 - Prob. 55ECh. 21 - Prob. 56ECh. 21 - Prob. 57ECh. 21 - Prob. 58ECh. 21 - Prob. 59ECh. 21 - Prob. 60ECh. 21 - Prob. 61ECh. 21 - Prob. 62ECh. 21 - Prob. 63ECh. 21 - Prob. 64ECh. 21 - Prob. 65ECh. 21 - Prob. 66ECh. 21 - Prob. 67ECh. 21 - Prob. 68ECh. 21 - Prob. 69ECh. 21 - Complete the following reactions. a. CH3CO2H +...Ch. 21 - Prob. 71ECh. 21 - Prob. 72ECh. 21 - Prob. 73ECh. 21 - Prob. 74ECh. 21 - Prob. 75ECh. 21 - The polyester formed from lactic acid, is used for...Ch. 21 - Prob. 77ECh. 21 - Prob. 78ECh. 21 - Prob. 79ECh. 21 - Prob. 80ECh. 21 - Prob. 81ECh. 21 - Prob. 82ECh. 21 - Prob. 83ECh. 21 - Prob. 84ECh. 21 - Prob. 85ECh. 21 - Prob. 86ECh. 21 - Prob. 87ECh. 21 - Prob. 88ECh. 21 - Prob. 89ECh. 21 - Prob. 90ECh. 21 - Prob. 91ECh. 21 - Prob. 92ECh. 21 - Prob. 93ECh. 21 - Prob. 94ECh. 21 - Prob. 95ECh. 21 - Prob. 96ECh. 21 - Prob. 97ECh. 21 - Prob. 98ECh. 21 - Prob. 99ECh. 21 - Prob. 100ECh. 21 - Prob. 101ECh. 21 - Prob. 102ECh. 21 - Prob. 103ECh. 21 - Prob. 104ECh. 21 - Prob. 105ECh. 21 - Prob. 106ECh. 21 - Which base will hydrogen-bond with uracil within...Ch. 21 - Prob. 108ECh. 21 - The base sequences in mRNA that code for certain...Ch. 21 - Prob. 110ECh. 21 - Prob. 111AECh. 21 - Prob. 112AECh. 21 - Prob. 113AECh. 21 - Prob. 114AECh. 21 - Prob. 115AECh. 21 - Prob. 116AECh. 21 - Prob. 117AECh. 21 - Prob. 118AECh. 21 - Prob. 119AECh. 21 - Prob. 120AECh. 21 - Prob. 121AECh. 21 - Prob. 122AECh. 21 - Prob. 123AECh. 21 - Prob. 124AECh. 21 - Prob. 125AECh. 21 - Prob. 126AECh. 21 - Prob. 127AECh. 21 - Prob. 128AECh. 21 - Prob. 129AECh. 21 - Prob. 130AECh. 21 - Prob. 131AECh. 21 - Prob. 132AECh. 21 - Prob. 133AECh. 21 - Prob. 134AECh. 21 - When heat is added to proteins, the hydrogen...Ch. 21 - Prob. 136AECh. 21 - Prob. 137CWPCh. 21 - Prob. 138CWPCh. 21 - Prob. 139CWPCh. 21 - Name each of the following alkenes and alkynes. a....Ch. 21 - a. Name each of the following alcohols. b. Name...Ch. 21 - Prob. 142CWPCh. 21 - Prob. 143CWPCh. 21 - Prob. 144CWPCh. 21 - Prob. 145CPCh. 21 - Prob. 146CPCh. 21 - Prob. 147CPCh. 21 - Prob. 148CPCh. 21 - Prob. 149CPCh. 21 - Prob. 150CPCh. 21 - Prob. 151CPCh. 21 - Prob. 152CPCh. 21 - Prob. 153CPCh. 21 - Prob. 154CPCh. 21 - Stretch a rubber band while holding it gently to...Ch. 21 - Alcohols are very useful starting materials for...Ch. 21 - Prob. 157CPCh. 21 - Prob. 158CPCh. 21 - Prob. 159IPCh. 21 - Prob. 160IPCh. 21 - Prob. 161MPCh. 21 - Prob. 162MP
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