Chemical Principles
8th Edition
ISBN: 9781337247269
Author: Steven S. Zumdahl; Donald J. DeCoste
Publisher: Cengage Learning US
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Textbook Question
Chapter 18, Problem 50E
The synthesis of ammonia gas from nitrogen gas andhydrogen gas represents a classic case in which a knowledgeof kinetics and equilibrium was used to make adesired
a. running the reaction at an elevated temperature
b. removing the ammonia from the reaction mixture asit forms
c. using a catalyst
d. running the reaction at high pressure
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16
The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of sodium azide, which produces large volumes of nitrogen gas.
1. Write a balanced chemical equation, including physical state symbols, for the
decomposition of solid sodium azide (NaN3) into solid sodium and gaseous dinitrogen.
1
2. Suppose 64.0 L of dinitrogen gas are produced by this reaction, at a temperature of
16.0 °C and pressure of exactly 1 atm. Calculate the mass of sodium azide that must
have reacted. Be sure your answer has the correct number of significant digits.
08
0-0
00
26. When a mixture of hydrogen and bromine is maintained at normal atmospheric pressure and heated above 200°C in a
closed container, the hydrogen and bromine react to form hydrogen bromide and a gas-phase equilibrium is established.
a) Write a balanced chemical equation for the equilibrium reaction.
b) Use bond enthalpies to estimate the enthalpy change for the reaction.
c) Based on your answers to parts (a) and (b), which is more important in determining the position of this equilibrium,
the entropy effect or the energy effect?
d) In which direction will the equilibrium shift as the temperature increases above 200°C? Explain.
e) Suppose that the pressure were increased to triple its initial value. In which direction would the equilibrium shift?
f) Why is the equilibrium not established at room temperature?
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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