Chemistry: The Molecular Science
5th Edition
ISBN: 9781285199047
Author: John W. Moore, Conrad L. Stanitski
Publisher: Cengage Learning
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Question
Chapter 16, Problem 31QRT
Interpretation Introduction
Interpretation:
The entropy change for the vaporization of alcohol has to be calculated.
Concept Introduction:
The term entropy is used to represent the randomness in a system. When a system moves from an ordered arrangement to a less order arrangement, then the entropy of the system increases. The second law of
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Check out a sample textbook solutionChapter 16 Solutions
Chemistry: The Molecular Science
Ch. 16.1 - Write a chemical equation for each process and...Ch. 16.2 - Prob. 16.2CECh. 16.3 - A chemical reaction transfers 30.8 kJ to a thermal...Ch. 16.3 - Prob. 16.3CECh. 16.3 - Prob. 16.2PSPCh. 16.3 - For each process, predict whether entropy...Ch. 16.4 - Calculate the entropy change for each of these...Ch. 16.5 - The reaction of carbon monoxide with hydrogen to...Ch. 16.5 - Prob. 16.4PSPCh. 16.5 - Prob. 16.6CE
Ch. 16.5 - Prob. 16.8ECh. 16.6 - Prob. 16.9CECh. 16.6 - In the text we concluded that the reaction to...Ch. 16.6 - Prob. 16.10CECh. 16.6 - Prob. 16.6PSPCh. 16.7 - Prob. 16.7PSPCh. 16.7 - Prob. 16.8PSPCh. 16.7 - Prob. 16.9PSPCh. 16.8 - Predict whether each reaction is reactant-favored...Ch. 16.9 - Prob. 16.13ECh. 16.9 - Prob. 16.11PSPCh. 16.9 - Prob. 16.12PSPCh. 16.9 - Prob. 16.14ECh. 16.11 - All of these substances are stable with respect to...Ch. 16 - Define the terms product-favored System and...Ch. 16 - What are the two ways that a final chemical state...Ch. 16 - Define the term entropy, and give an example of a...Ch. 16 - Prob. 4QRTCh. 16 - Prob. 5QRTCh. 16 - Prob. 6QRTCh. 16 - Prob. 7QRTCh. 16 - Prob. 8QRTCh. 16 - Prob. 9QRTCh. 16 - Prob. 10QRTCh. 16 - Prob. 11QRTCh. 16 - Prob. 12QRTCh. 16 - Prob. 13QRTCh. 16 - Prob. 14QRTCh. 16 - Prob. 15QRTCh. 16 - Prob. 16QRTCh. 16 - Prob. 17QRTCh. 16 - Suppose you have four identical molecules labeled...Ch. 16 - For each process, tell whether the entropy change...Ch. 16 - Prob. 20QRTCh. 16 - For each situation described in Question 13,...Ch. 16 - Prob. 22QRTCh. 16 - Prob. 23QRTCh. 16 - Prob. 24QRTCh. 16 - Prob. 25QRTCh. 16 - Prob. 26QRTCh. 16 - Prob. 27QRTCh. 16 - Prob. 28QRTCh. 16 - Prob. 29QRTCh. 16 - Prob. 30QRTCh. 16 - Prob. 31QRTCh. 16 - Diethyl ether, (C2H5)2O, was once used as an...Ch. 16 - Calculate rS for each substance when the quantity...Ch. 16 - Prob. 34QRTCh. 16 - Prob. 35QRTCh. 16 - Check your predictions in Question 28 by...Ch. 16 - Prob. 37QRTCh. 16 - Prob. 38QRTCh. 16 - Prob. 39QRTCh. 16 - Prob. 40QRTCh. 16 - Prob. 41QRTCh. 16 - Prob. 42QRTCh. 16 - Prob. 43QRTCh. 16 - Prob. 44QRTCh. 16 - Prob. 45QRTCh. 16 - Prob. 46QRTCh. 16 - Hydrogen bums in air with considerable heat...Ch. 16 - Prob. 48QRTCh. 16 - Prob. 49QRTCh. 16 - Prob. 50QRTCh. 16 - Prob. 51QRTCh. 16 - The reaction of magnesium with water can be used...Ch. 16 - Prob. 53QRTCh. 16 - Prob. 54QRTCh. 16 - Prob. 55QRTCh. 16 - Prob. 56QRTCh. 16 - Prob. 57QRTCh. 16 - Prob. 58QRTCh. 16 - Prob. 59QRTCh. 16 - Prob. 60QRTCh. 16 - Prob. 61QRTCh. 16 - Estimate ΔrG° at 2000. K for each reaction in...Ch. 16 - Prob. 63QRTCh. 16 - Some metal oxides, such as lead(II) oxide, can be...Ch. 16 - Prob. 65QRTCh. 16 - Prob. 66QRTCh. 16 - Use data from Appendix J to obtain the equilibrium...Ch. 16 - Prob. 68QRTCh. 16 - Prob. 69QRTCh. 16 - Use the data in Appendix J to calculate rG andKPat...Ch. 16 - Prob. 71QRTCh. 16 - Prob. 72QRTCh. 16 - Prob. 73QRTCh. 16 - Prob. 74QRTCh. 16 - Prob. 75QRTCh. 16 - Prob. 76QRTCh. 16 - Prob. 77QRTCh. 16 - Prob. 78QRTCh. 16 - Prob. 79QRTCh. 16 - The molecular structure shown is of one form of...Ch. 16 - Another step in the metabolism of glucose, which...Ch. 16 - In muscle cells under the condition of vigorous...Ch. 16 - The biological oxidation of ethanol, C2H5OH, is...Ch. 16 - Prob. 86QRTCh. 16 - For one day, keep a log of all the activities you...Ch. 16 - Billions of pounds of acetic acid are made each...Ch. 16 - Determine the standard Gibbs free energy change,...Ch. 16 - There are millions of organic compounds known, and...Ch. 16 - Actually, the carbon in CO2(g) is...Ch. 16 - The standard molar entropy of methanol vapor,...Ch. 16 - The standard molar entropy of iodine vapor, I2(g),...Ch. 16 - Prob. 94QRTCh. 16 - Prob. 96QRTCh. 16 - Prob. 97QRTCh. 16 - Prob. 98QRTCh. 16 - Prob. 99QRTCh. 16 - Prob. 100QRTCh. 16 - Appendix J lists standard molar entropies S, not...Ch. 16 - When calculating rSfromSvalues, it is necessary to...Ch. 16 - Prob. 103QRTCh. 16 - Explain how the entropy of the universe increases...Ch. 16 - Prob. 105QRTCh. 16 - Prob. 106QRTCh. 16 - Prob. 107QRTCh. 16 - Prob. 108QRTCh. 16 - Prob. 109QRTCh. 16 - Reword the statement in Question 109 so that it is...Ch. 16 - Prob. 111QRTCh. 16 - Prob. 112QRTCh. 16 - Prob. 113QRTCh. 16 - Prob. 114QRTCh. 16 - Prob. 115QRTCh. 16 - Prob. 116QRTCh. 16 - From data in Appendix J, estimate (a) the boiling...Ch. 16 - Prob. 118QRTCh. 16 - Prob. 119QRTCh. 16 - Prob. 120QRTCh. 16 - Prob. 121QRTCh. 16 - Prob. 122QRTCh. 16 - Prob. 123QRTCh. 16 - Prob. 124QRTCh. 16 - Prob. 125QRTCh. 16 - Prob. 126QRTCh. 16 - The standard equilibrium constant is 2.1109for...Ch. 16 - Prob. 16.ACPCh. 16 - Prob. 16.CCPCh. 16 - Prob. 16.DCPCh. 16 - Consider planet Earth as a thermodynamic system....
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- Solid NH4NO3 is placed in a beaker containing water at 25 C. When the solid has completely dissolved, the temperature of the solution is 23.5 C. (a) Was the process exothermic or endothermic? (b) Was the process spontaneous? (c) Did the entropy of the system increase? (d) Did the entropy of the universe increase?arrow_forwardCalculate the entropy change, rS, for the vaporization of ethanol, C2H5OH, at its normal boiling point, 78.0 C. The enthalpy of vaporization of ethanol is 39.3 kJ/mol.arrow_forwardDefine the following: a. spontaneous process b. entropy c. positional probability d. system e. surroundings f. universearrow_forward
- Diethyl ether, (C2H5)2O, was once used as an anesthetic. Calculate the entropy change, rS, for the vaporization of ether if its heat of vaporization is 26.0 kJ/mol at the boiling point of 35.0 C.arrow_forwardThe standard molar entropy of methanol vapor, CH3OH(g), is 239.8 J K1 mol-1. (a) Calculate the entropy change for the vaporization of 1 mol methanol (use data from Table 16.1 or Appendix J). (b) Calculate the enthalpy of vaporization of methanol, assuming that rS doesnt depend on temperature and taking the boiling point of methanol to be 64.6C.arrow_forwardThrough photosynthesis, plants build molecules of sugar containing several carbon atoms from carbon dioxide. In the process, entropy is decreased. The reaction of CO2with formic acid to form oxalic acid provides a simple example of a reaction in which the number of carbon atoms in a compound increases: CO2(aq)+HCOOH(aq)H2C2O4(aq) (a) Calculate the standard entropy change for this reaction and discuss the sign of S . (b) How do plants carry out reactions that increase the number of carbon atoms in a sugar, given the changes in entropy for reactions like this?arrow_forward
- The combustion of acetylene, C2H2, is a spontaneous reaction given by the equation 2C2H2(g)+5O2(g)4CO2(g)+2H2O(l) As expected for a combustion, the reaction is exothermic. What is the sign of H? What do you expect for the sign of S? Explain the spontaneity of the reaction in terms of the enthalpy and entropy changes.arrow_forwardIndicate whether the following processes are spontaneous or nonspontaneous. (a) Liquid water freezing at a temperature below its freezing point (b) Liquid water freezing at a temperature above its freezing point (c) The combustion of gasoline (d) A ball thrown into the air (e) A raindrop falling to the ground (f) Iron rusting in a moist atmospherearrow_forwardSome water is placed in a coffee-cup calorimeter. When 1.0 g of an ionic solid is added, the temperature of the solution increases from 21.5C to 24.2C as the solid dissolves. For the dissolving process, what are the signs for Ssys, Ssurr, and Suniv?arrow_forward
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