
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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![### Chemical Equilibrium and Reaction Effects
#### Question 261
Hydrogen, bromine, and HBr in the gas phase are in equilibrium in a container of fixed volume.
\[ \text{H}_2(g) + \text{Br}_2(g) \rightleftharpoons 2 \text{HBr}(g) \, \, (\text{+ heat}) \quad \Delta H^\circ = -103.7 \, \text{kJ} \]
**How will each of the following changes affect the equilibrium and the value of the equilibrium constant?**
a) Some \(\text{H}_2(g)\) is added to the container.
b) The pressure of \(\text{HBr}(g)\) is increased.
c) The temperature of this system is increased.
#### Question 262
Predict the effect on this reaction if the following changes are made.
\[ \text{Fe(OH)}_3(s) + \text{H}_2\text{O}(l) \rightarrow \text{Fe}^{3+}(aq) + 3 \text{OH}^-(aq) \]
a) \(\text{Fe(NO}_3)_3(aq)\) is added:
b) \(\text{NaOH}(aq)\) is added:
c) \(\text{Fe(OH)}_3(s)\) is added:
d) \(\text{HCl}(aq)\) is added:](https://content.bartleby.com/qna-images/question/d7f1690c-47e2-42cd-b38b-5e904dfd21d9/6d33ff9a-b0b8-4396-8480-e6faf9e6bd8c/6gmcip_thumbnail.jpeg)
Transcribed Image Text:### Chemical Equilibrium and Reaction Effects
#### Question 261
Hydrogen, bromine, and HBr in the gas phase are in equilibrium in a container of fixed volume.
\[ \text{H}_2(g) + \text{Br}_2(g) \rightleftharpoons 2 \text{HBr}(g) \, \, (\text{+ heat}) \quad \Delta H^\circ = -103.7 \, \text{kJ} \]
**How will each of the following changes affect the equilibrium and the value of the equilibrium constant?**
a) Some \(\text{H}_2(g)\) is added to the container.
b) The pressure of \(\text{HBr}(g)\) is increased.
c) The temperature of this system is increased.
#### Question 262
Predict the effect on this reaction if the following changes are made.
\[ \text{Fe(OH)}_3(s) + \text{H}_2\text{O}(l) \rightarrow \text{Fe}^{3+}(aq) + 3 \text{OH}^-(aq) \]
a) \(\text{Fe(NO}_3)_3(aq)\) is added:
b) \(\text{NaOH}(aq)\) is added:
c) \(\text{Fe(OH)}_3(s)\) is added:
d) \(\text{HCl}(aq)\) is added:
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