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ISBN: 9781260162660
Author: BAUER
Publisher: MCG
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Chapter 11, Problem 46QP
Interpretation Introduction
Interpretation:
The process to prepare a supersaturated solution of ammonium chloride is to be determined.
Concept Introduction:
Solubility is the property of a substance in its solid or liquid or gaseous state called solute to dissolve in a liquid (also in solid or gas) called the solvent. A solute dissolved in a solvent gives a solution. The amount of solute dissolved in a solvent depends on the structure, temperature and pressure of the solute and attractive force between solute and solvent. A solution can be defined as supersaturated solution if it contains more than the maximum amount of dissolved solute in a solvent at a certain temperature.
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MISSED THIS? Read Section 19.9 (Pages 878-881); Watch IWE 19.10
Consider the following reaction:
CH3OH(g)
CO(g) + 2H2(g)
(Note that AG,CH3OH(g) = -162.3 kJ/mol and AG,co(g)=-137.2 kJ/mol.)
Part A
Calculate AG for this reaction at 25 °C under the following conditions:
PCH₂OH
Pco
PH2
0.815 atm
=
0.140 atm
0.170 atm
Express your answer in kilojoules to three significant figures.
Ο ΑΣΦ
AG = -150
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kJ
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Calculate the free energy change under nonstandard conditions (AGrxn) by using the following relationship:
AGrxn = AGrxn + RTInQ,
AGxn+RTInQ,
where AGxn is the standard free energy change, R is the ideal gas constant, T is the temperature in kelvins, a
is the reaction quotient.
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Chapter 11 Solutions
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Solutions: Crash Course Chemistry #27; Author: Crash Course;https://www.youtube.com/watch?v=9h2f1Bjr0p4;License: Standard YouTube License, CC-BY