Introductory Chemistry: Concepts and Critical Thinking (8th Edition)
8th Edition
ISBN: 9780134421377
Author: Charles H Corwin
Publisher: PEARSON
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Question
Chapter 7, Problem 31E
Interpretation Introduction
(a)
Interpretation:
The balanced combination equation for the heating of chromium with oxygen to form solid
Concept introduction:
A balanced chemical equation represents an equation in which all the reactants and products are written with their
Interpretation Introduction
(b)
Interpretation:
The balanced combination equation for the heating of chromium with nitrogen to form solid
Concept introduction:
A balanced chemical equation represents an equation in which all the reactants and products are written with their stoichiometric coefficient and physical states. The number of atoms of an element on the both sides of the equation is equal.
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Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
N2 (g) + 3H2 (g) = 2NH3 (g) AG⁰ = -34. KJ
Now suppose a reaction vessel is filled with 8.06 atm of nitrogen (N2) and 2.58 atm of ammonia (NH3) at 106. °C. Answer the following questions about this
system:
?
rise
Under these conditions, will the pressure of N2 tend to rise or fall?
☐ x10
fall
Is it possible to reverse this tendency by adding H₂?
In other words, if you said the pressure of N2 will tend to rise, can that be
changed to a tendency to fall by adding H₂? Similarly, if you said the
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by adding H₂?
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the minimum pressure of H₂ needed to reverse it.
Round your answer to 2 significant digits.
yes
no
☐
atm
☑
5
00.
18
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Chapter 7 Solutions
Introductory Chemistry: Concepts and Critical Thinking (8th Edition)
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