Chemistry: A Molecular Approach
Chemistry: A Molecular Approach
3rd Edition
ISBN: 9780321809247
Author: Nivaldo J. Tro
Publisher: Prentice Hall
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Question
Chapter 14, Problem 1SAQ
Interpretation Introduction

Introduction: For a reaction, the equilibrium constant is given by the law of mass action. It is defined as the ratio of concentrations of products to that of the reactants, each raised to the power of stoichiometric coefficients.

Expert Solution & Answer
Check Mark

Answer to Problem 1SAQ

Correct answer: Option (d) is correct.

Explanation of Solution

Justify reasons for correct statement:

The given reaction is as follows:

C(s)+2H2(g)CH4(g)

Here, the product is CH4(g) and reactants are C(s)and H2(g). Thus, equilibrium constant must be expressed in terms of these components as follows:

Kc=[CH4][H2]2

It includes the concentrations of only gaseous terms; all other terms are excluded. In option (d), all these conditions are fulfilled; There fore, option (d) is correct.

Justify reasons for incorrect statements:

In options (b) and (c), the concentrations of solid carbon are taken as zero in writing the equilibrium constant. In option (a), the concentration of carbon is excluded, but the concentration of hydrogen is not raised to the correct power of stoichiometry. There fore, options (b), (c), and (a) are incorrect.

Conclusion
Equilibrium constant is given as Kc=[CH4][H2]2

There fore, option (d) is correct.

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Chapter 14 Solutions

Chemistry: A Molecular Approach

Ch. 14 - Prob. 11SAQCh. 14 - Prob. 12SAQCh. 14 - 1. How does a developing fetus get oxygen in the...Ch. 14 - Prob. 2ECh. 14 - Prob. 3ECh. 14 - Prob. 4ECh. 14 - Prob. 5ECh. 14 - Prob. 6ECh. 14 - Prob. 7ECh. 14 - Prob. 8ECh. 14 - Prob. 9ECh. 14 - Prob. 10ECh. 14 - Prob. 11ECh. 14 - Prob. 12ECh. 14 - Prob. 13ECh. 14 - Prob. 14ECh. 14 - Prob. 15ECh. 14 - Prob. 16ECh. 14 - Prob. 17ECh. 14 - Prob. 18ECh. 14 - Prob. 19ECh. 14 - Prob. 20ECh. 14 - Prob. 21ECh. 14 - Prob. 22ECh. 14 - 23. When this reaction comes to equilibrium, will...Ch. 14 - Prob. 24ECh. 14 - 25. H2 and I2 are combined in a flask and allowed...Ch. 14 - Prob. 26ECh. 14 - Prob. 27ECh. 14 - 28. This reaction has an equilibrium constant of...Ch. 14 - 29. Consider the reactions and their respective...Ch. 14 - 30. Use the reactions and their equilibrium...Ch. 14 - 31. Calculate Kc for each reaction. a. I2(g) 2...Ch. 14 - 32. Calculate Kp for each reaction. a. N2O4(g) 2...Ch. 14 - 33. Write an equilibrium expression for each...Ch. 14 - 34. Find and fix the mistake in the equilibrium...Ch. 14 - 35. Consider the reaction: CO(g) + 2 H2(g) ...Ch. 14 - 36. Consider the reaction: NH4HS(s) NH3(g) +...Ch. 14 - 37. Consider the reaction: N2(g) + 3 H2(g) 2...Ch. 14 - 38. Consider the following reaction: H2(g) + I2(g)...Ch. 14 - 39. Consider the reaction: 2 NO(g) + Br2(g) 2...Ch. 14 - 40. Consider the reaction: SO2Cl2(g) SO2(g) +...Ch. 14 - 41. For the reaction A(g) 2 B(g), a reaction...Ch. 14 - 42. For the reaction 2 A(g) B(g) + 2 C(g), a...Ch. 14 - 43. Consider the reaction: Fe3+(aq) + SCN–(aq) ...Ch. 14 - 44. Consider the reaction: SO2Cl2(g) SO2(g) +...Ch. 14 - 45. Consider the reaction: H2(g) + I2(g) 2...Ch. 14 - 46. Consider the reaction: CO(g) + 2 H2(g) ...Ch. 14 - 47. Consider the reaction: NH4HS(s) NH3(g) +...Ch. 14 - 48. Consider the reaction: 2 H2S(g) 2 H2(g) +...Ch. 14 - 49. Silver sulfate dissolves in water according to...Ch. 14 - 50. Nitrogen dioxide dimerizes according to the...Ch. 14 - 51. Consider the reaction and the associated...Ch. 14 - 52. Consider the reaction and the associated...Ch. 14 - 53. For the reaction shown here, Kc = 0.513 at 500...Ch. 14 - 54. For the reaction shown here, Kc = 255 at 1000...Ch. 14 - 55. Consider the reaction: NiO(s) + CO(g) Ni(s) +...Ch. 14 - 56. Consider the reaction: CO(g) + H2O(g) CO2(g)...Ch. 14 - 57. Consider the reaction: HC2H3O2(aq) + H2O(l) ...Ch. 14 - 58. Consider the reaction: SO2Cl2(g) SO2(g) +...Ch. 14 - 59. Consider the reaction: Br2(g) + Cl2(g) 2...Ch. 14 - 60. Consider the reaction: CO(g) + H2O(g) CO2(g)...Ch. 14 - Prob. 61ECh. 14 - Prob. 62ECh. 14 - Prob. 63ECh. 14 - 64. Consider this reaction at equilibrium: 2...Ch. 14 - 65. Consider this reaction at equilibrium: 2...Ch. 14 - 66. Consider this reaction at equilibrium: C(s) +...Ch. 14 - 67. Each reaction is allowed to come to...Ch. 14 - Prob. 68ECh. 14 - Prob. 69ECh. 14 - Prob. 70ECh. 14 - Prob. 71ECh. 14 - Prob. 72ECh. 14 - 73. Carbon monoxide replaces oxygen in oxygenated...Ch. 14 - Prob. 74ECh. 14 - Prob. 75ECh. 14 - 76. A mixture of water and graphite is heated to...Ch. 14 - 77. At 650 K, the reaction MgCO3(s) MgO(s) +...Ch. 14 - 78. A system at equilibrium contains I2(g) at a...Ch. 14 - Prob. 79ECh. 14 - Prob. 80ECh. 14 - Prob. 81ECh. 14 - Prob. 82ECh. 14 - Prob. 83ECh. 14 - Prob. 84ECh. 14 - 85. The system described by the reaction: CO(g) +...Ch. 14 - Prob. 86ECh. 14 - 87. At 70 K, CCl4 decomposes to carbon and...Ch. 14 - 88. The equilibrium constant for the reaction...Ch. 14 - 89. A sample of CaCO3(s) is introduced into a...Ch. 14 - Prob. 90ECh. 14 - Prob. 91ECh. 14 - Prob. 92ECh. 14 - Prob. 93ECh. 14 - Prob. 94ECh. 14 - Prob. 95ECh. 14 - Prob. 96ECh. 14 - Prob. 97ECh. 14 - 98. When N2O5(g) is heated, it dissociates into...Ch. 14 - 99. A sample of SO3 is introduced into an...Ch. 14 - 100. A reaction A(g) B(g) has an equilibrium...Ch. 14 - Prob. 101ECh. 14 - Prob. 102ECh. 14 - Prob. 103ECh. 14 - Prob. 104E
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