Chemistry
4th Edition
ISBN: 9780078021527
Author: Julia Burdge
Publisher: McGraw-Hill Education
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Question
Chapter 18.10, Problem 1PPC
Interpretation Introduction
Interpretation:
The symbols for ∆G0 for the given conditions are to be filled.
Concept introduction:
The sign of standard free energy change gives the direction of spontaneity of the reaction.
If the free energy change is negative
If the free energy change is positive
When
The expression for standard free energy change is as follows:
Here,
is the temperature.
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Practice Exercise 1If the heat of formation of H2O1l2 is -286 kJ>mol, whichof the following thermochemical equations is correct?(a) 2 H1g2 + O1g2¡H2O1l2 ΔH = -286 kJ(b) 2 H21g2 + O21g2¡2 H2O1l2 ΔH = -286 kJ(c) H21g2 + 12 O21g2¡H2O1l2 ΔH = -286 kJ(d) H21g2 + O1g2¡H2O1g2 ΔH = -286 kJ(e) H2O1l2¡H21g2 + 12O21g2 ΔH = -286 kJ
Check Your Understanding Use the following thermochemical equations as needed to find
be more exothermic than either of the
the heat of formation of diamond:
AH =-395.4 kJ
0,(g) CO,(g)
2 CO,(g)2 CO(g) + O, (g)
C(graphite) + O,(g)→ CO,(g)
2 CO(g)C(graphite) + CO,(g)
C(diamond) +
AH =
566.0 kJ
AH =
-393.5 kJ
AH = -172.5 kJ
Given the values of AH and AS, which of the following changes will be spontaneous at constant T and P?
(Select all that apply.)
D AH=+25 kJ, AS = +100. J/K, T = 300. K
AH=+25 kJ, AS = +4.0 J/K, T= 300. K
AH=-10, kJ, AS = -40. J/K, T = 100. K
UAH=-10, kJ, AS = +4.0 J/K, T= 291 K
ONone of the above.
Chapter 18 Solutions
Chemistry
Ch. 18.1 - Practice Problem ATTEMPT
Determine the change in...Ch. 18.1 - Practice Problem BUILD To what fraction of its...Ch. 18.1 - Practice Problem CONCEPTUALIZE
Which equation is...Ch. 18.2 - Practice ProblemATTEMPT Calculate the standard...Ch. 18.2 - Practice Problem BUILD
In each of the following...Ch. 18.2 - Practice Problem CONCEPTUALIZE
For each reaction...Ch. 18.3 - Practice ProblemATTEMPT For each of the following...Ch. 18.3 - Practice Problem BUILD
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Consider the...Ch. 18.3 - 18.3.1 For which of the following physical...
Ch. 18.3 - 18.3.2 For which of the following chemical...Ch. 18.3 - 18.3.3 Identify the correct balanced equation and...Ch. 18.4 - Practice Problem ATTEMPT For each of the...Ch. 18.4 - Practice Problem BUILD (a) Calculate Δ S univ and...Ch. 18.4 - Practice Problem CONCEPTUALIZE The following table...Ch. 18.4 - Using data from Appendix 2, calculate Δ S ° (in...Ch. 18.4 - 18.4.2 Using data from Appendix 2, calculate (in...Ch. 18.4 - The diagrams show a spontaneous chemical reaction....Ch. 18.4 - 18.4.4 The diagrams show a spontaneous chemical...Ch. 18.5 - Practice Problem ATTEMPT
A reaction will be...Ch. 18.5 - Practice Problem BUILD
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(a)
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is 8.6 kJ/mol....Ch. 18 - Prob. 50QPCh. 18 - What is a coupled reaction? What is its importance...Ch. 18 - What is the role of ATP in biological reactions?Ch. 18 - Prob. 53QPCh. 18 - 18.54 In the metabolism of glucose, the first step...Ch. 18 - Predict the signs of Δ H , Δ S , and Δ G of the...Ch. 18 - Prob. 56APCh. 18 - Prob. 57APCh. 18 - Prob. 58APCh. 18 - Prob. 59APCh. 18 - Prob. 60APCh. 18 - Ammonium nitrate ( NH 4 NO 3 ) dissolves...Ch. 18 - 18.62 Calculate the equilibrium pressure of due...Ch. 18 - Prob. 63APCh. 18 - Referring to Problem 18.63, explain why the ratio...Ch. 18 - 18.65 Which of the following are not state...Ch. 18 - 18.66 For reactions carried out under...Ch. 18 - Prob. 67APCh. 18 - Prob. 68APCh. 18 - A student looked up the Δ G f o , Δ H f o , and Δ...Ch. 18 - Consider the following Brønsted acid-base reaction...Ch. 18 - 18.71 At o K, the entropy of carbon monoxide...Ch. 18 - Prob. 72APCh. 18 - Consider the thermal decomposition of CaCO 3 :...Ch. 18 - Prob. 74QPCh. 18 - Prob. 75QPCh. 18 - Prob. 76QPCh. 18 - Prob. 77APCh. 18 - Prob. 78APCh. 18 - Prob. 79APCh. 18 - Prob. 80APCh. 18 - Prob. 81APCh. 18 - Prob. 82APCh. 18 - 18.83 Comment on the statement: “Just talking...Ch. 18 - Prob. 84APCh. 18 - Consider the reaction: N 2 ( g ) + O 2 ( g ) ⇄ 2...Ch. 18 - Prob. 86APCh. 18 - Consider the decomposition of magnesium carbonate:...Ch. 18 - Prob. 88APCh. 18 - Prob. 89APCh. 18 - 18.90 The rate constant for the elementary...Ch. 18 - A 74.6-g ice cube floats in the Arctic Sea. The...Ch. 18 - 18.92 Which of the following is not accompanied by...Ch. 18 - Prob. 93APCh. 18 - Give a detailed example of each of the following,...Ch. 18 - Prob. 95QPCh. 18 - 18.96 The standard enthalpy of formation and the...Ch. 18 - Prob. 97QPCh. 18 - Prob. 98QPCh. 18 - The following reaction was described as the cause...Ch. 18 - Comment on the feasibility of extracting copper...Ch. 18 - 18.101 One of the steps in the extraction of iron...Ch. 18 - Prob. 102APCh. 18 - Prob. 103APCh. 18 - Prob. 104APCh. 18 - 18.105 The enthalpy change in the denaturation of...Ch. 18 - Prob. 106APCh. 18 - Prob. 107APCh. 18 - Prob. 108APCh. 18 - Prob. 109APCh. 18 - Prob. 110APCh. 18 - 18.111 Carbon monoxide and nitric oxide are...Ch. 18 - Prob. 112APCh. 18 - Prob. 113APCh. 18 - 18.114 Many hydrocarbons exist as structural...Ch. 18 - Physical and Biological Sciences
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