Chemical Principles
8th Edition
ISBN: 9781305581982
Author: Steven S. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Question
Chapter 18, Problem 68E
Interpretation Introduction
Interpretation:
The maximum
Concept Introduction:
The enthalpy change, ΔH for a reaction is essentially the heat flow of the reaction taking place at constant pressure.
The change in enthalpy for a given reaction can be deduced from the difference in the total number of bonds that are broken (reactants) and the total number of bonds formed (products)
The energy (E) of a photon of wavelength (λ) and frequency (ν) is given by the Planck's equation:
Here,
h = Planck's constant = 6.626x10-34 Js
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Chapter 18 Solutions
Chemical Principles
Ch. 18 - Prob. 1ECh. 18 - Prob. 2ECh. 18 - Prob. 3ECh. 18 - Prob. 4ECh. 18 - Prob. 5ECh. 18 - Prob. 6ECh. 18 - Prob. 7ECh. 18 - Prob. 8ECh. 18 - Prob. 9ECh. 18 - The electrolysis of aqueous sodium chloride...
Ch. 18 - Prob. 11ECh. 18 - Prob. 12ECh. 18 - Prob. 13ECh. 18 - Prob. 14ECh. 18 - Prob. 15ECh. 18 - Prob. 16ECh. 18 - Prob. 17ECh. 18 - Prob. 18ECh. 18 - Prob. 19ECh. 18 - Prob. 20ECh. 18 - Prob. 21ECh. 18 - Prob. 22ECh. 18 - Prob. 23ECh. 18 - Prob. 24ECh. 18 - Prob. 25ECh. 18 - Prob. 26ECh. 18 - Prob. 27ECh. 18 - Prob. 28ECh. 18 - Prob. 29ECh. 18 - Prob. 30ECh. 18 - Prob. 31ECh. 18 - Prob. 32ECh. 18 - Prob. 33ECh. 18 - Prob. 34ECh. 18 - Prob. 35ECh. 18 - Prob. 36ECh. 18 - Prob. 37ECh. 18 - Prob. 38ECh. 18 - Prob. 39ECh. 18 - Prob. 40ECh. 18 - Prob. 41ECh. 18 - Prob. 42ECh. 18 - Prob. 43ECh. 18 - Prob. 44ECh. 18 - Prob. 45ECh. 18 - Prob. 46ECh. 18 - Prob. 47ECh. 18 - Prob. 48ECh. 18 - Prob. 49ECh. 18 - The synthesis of ammonia gas from nitrogen gas...Ch. 18 - Prob. 51ECh. 18 - Prob. 52ECh. 18 - Prob. 53ECh. 18 - Prob. 54ECh. 18 - Prob. 55ECh. 18 - Prob. 56ECh. 18 - Prob. 57ECh. 18 - Prob. 58ECh. 18 - Prob. 59ECh. 18 - Prob. 60ECh. 18 - Prob. 61ECh. 18 - Prob. 62ECh. 18 - Prob. 63ECh. 18 - Prob. 64ECh. 18 - Prob. 65ECh. 18 - Prob. 66ECh. 18 - Prob. 67ECh. 18 - Prob. 68ECh. 18 - Prob. 69ECh. 18 - Prob. 70ECh. 18 - Prob. 71ECh. 18 - Prob. 72ECh. 18 - Prob. 73ECh. 18 - Prob. 74ECh. 18 - Prob. 75ECh. 18 - Prob. 76ECh. 18 - Prob. 77ECh. 18 - Prob. 78ECh. 18 - Prob. 79ECh. 18 - Prob. 80ECh. 18 - Prob. 81ECh. 18 - Prob. 82ECh. 18 - Prob. 83ECh. 18 - Prob. 84ECh. 18 - Prob. 85ECh. 18 - Prob. 86ECh. 18 - Prob. 87ECh. 18 - Prob. 88ECh. 18 - Prob. 89ECh. 18 - Prob. 90AECh. 18 - Prob. 91AECh. 18 - Prob. 92AECh. 18 - Prob. 93AECh. 18 - Prob. 94AECh. 18 - Prob. 95AECh. 18 - Prob. 96AECh. 18 - Prob. 97AECh. 18 - Prob. 98AECh. 18 - Prob. 99AECh. 18 - Prob. 100AECh. 18 - Prob. 101AECh. 18 - Prob. 102AECh. 18 - Prob. 103AECh. 18 - Prob. 104AECh. 18 - Prob. 105AECh. 18 - Prob. 106AECh. 18 - Prob. 107AECh. 18 - Prob. 108AECh. 18 - Prob. 109AECh. 18 - Prob. 110AECh. 18 - Prob. 111AECh. 18 - Prob. 112AECh. 18 - Hydrogen gas is being considered as a fuel for...Ch. 18 - Prob. 114AECh. 18 - Prob. 115AECh. 18 - Prob. 116AECh. 18 - Prob. 117AECh. 18 - Prob. 118AECh. 18 - Prob. 119AECh. 18 - What is the molecular structure for each of the...Ch. 18 - Prob. 121AECh. 18 - Prob. 122AECh. 18 - Prob. 123CPCh. 18 - Prob. 124CPCh. 18 - Prob. 125CPCh. 18 - Prob. 126CPCh. 18 - Prob. 127CPCh. 18 - Prob. 128CPCh. 18 - Prob. 129CPCh. 18 - Prob. 130CPCh. 18 - Prob. 131CPCh. 18 - Prob. 132CPCh. 18 - Prob. 133CP
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- In which of the following molecules does the sulfur have an expanded octet? For those that do, write the Lewis structure. (a) SO2 (b) SF4 (c) SO2Cl2 (d) SF6arrow_forwardLight of appropriate wavelength can break chemical bonds. Light having λ < 240 nm can dissociate gaseous O2. It requires light with λ < 819 nm to dissociate gaseous H2O2 to 2 OH. Assume that all of the photon energy is used solely for these dissociations. (a) Calculate the energy required to dissociate (i) O2 and (ii) H2O2. (b) Consider the results of part (a). How well do they correlate with the Lewis structures of O2 and H2O2? Explain your answer.arrow_forwardBond Enthalpy When atoms of the hypothetical element X are placed together, they rapidly undergo reaction to form the X2 molecule: X(g)+X(g)X2(g) a Would you predict that this reaction is exothermic or endothermic? Explain. b Is the bond enthalpy of X2 a positive or a negative quantity? Why? c Suppose H for the reaction is 500 kJ/mol. Estimate the bond enthalpy of the X2 molecule. d Another hypothetical molecular compound, Y2(g), has a bond enthalpy of 750 kJ/mol, and the molecular compound XY(g) has a bond enthalpy of 1500 kJ/mol. Using bond enthalpy information, calculate H for the following reaction. X2(g)+Y2(g)2XY(g) e Given the following information, as well as the information previously presented, predict whether or not the hypothetical ionic compound AX is likely to form. In this compound, A forms the A+ cation, and X forms the X anion. Be sure to justify your answer. Reaction: A(g)+12X2(g)AX(s)The first ionization energy of A(g) is 400 kJ/mol. The electron affinity of X(g) is 525 kJ/mol. The lattice energy of AX(s) is 100 kJ/mol. f If you predicted that no ionic compound would form from the reaction in Part e, what minimum amount of AX(s) lattice energy might lead to compound formation?arrow_forward
- What is the molecular structure of the stable form of FNO2? (N is the central atom.)arrow_forwardA Lewis structure obeying the octet rule can be drawn for O2 as follows: Use the molecular orbital energy-level diagram for O2 to show that the above Lewis structure corresponds to an excited state.arrow_forwardThe standard enthalpy of formation for NO(g) is 90. kJ/mol. Use this and the values for the O=O and NN bond energies to estimate the bond strength in NO.arrow_forward
- Ethanol can be made by the reaction of ethylene and water: H2C=CH2(g) + H2O(g) CH3CH2OH(g) Use bond dissociation enthalpies to estimate the enthalpy change in this reaction. Compare the value obtained to the value calculated from enthalpies of formation.arrow_forwardAluminum(IV) iodide (AII_(4)) cannot be formed. Explain why this is the case by making reference to the energies involved in formation of this compound.arrow_forwardThe reaction of a metal, M, with a halogen, X2, proceeds by an exothermic reaction as indicated by this equation: M(s) + X2(g) ⟶ MX2(s). For each of the following, indicate which option will make the reaction moreexothermic. Explain your answers.(a) a large radius vs. a small radius for M+2(b) a high ionization energy vs. a low ionization energy for M(c) an increasing bond energy for the halogen(d) a decreasing electron affinity for the halogen(e) an increasing size of the anion formed by the halogenarrow_forward
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