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Chemistry: The Molecular Science
5th Edition
ISBN: 9781285199047
Author: John W. Moore, Conrad L. Stanitski
Publisher: Cengage Learning
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Qualitatively predicting reaction entropy
For each chemical reaction listed in the first column of the table below, predict the sign (positive or negative) of the reaction entropy
AS If it's not possible to decide with the information given, check the "not enough information" button in the last column.
Note for advanced students: Assume the temperature remains constant. Assume all gases and solutions are ideal.
reaction
N₂(g) + 3H₂(g) →
2NH, (e)
4Fe()+30.)- 2Fe₂O, (s)
N. (3), (g) 2NH, (g)
sign of reaction entropy
04
ron
reaction
<<0
50
not enough information.
45x
250
<<0
not enough information.
450
50
not enough information.
Using the general properties of Gibbs free energy
The standard reaction free energy AG" --835. kJ for this reaction:
2 Al(s) + Fe₂O3(s)-Al₂O3(s) + 2 Fe(s)
Use this information to complete the table below. Round each of your answers to the nearest kJ.
BALAKEN F04
AGO
Focus"
Transcribed Image Text:es)
Qualitatively predicting reaction entropy
For each chemical reaction listed in the first column of the table below, predict the sign (positive or negative) of the reaction entropy
AS If it's not possible to decide with the information given, check the "not enough information" button in the last column.
Note for advanced students: Assume the temperature remains constant. Assume all gases and solutions are ideal.
reaction
N₂(g) + 3H₂(g) →
2NH, (e)
4Fe()+30.)- 2Fe₂O, (s)
N. (3), (g) 2NH, (g)
sign of reaction entropy
04
ron
reaction
<<0
50
not enough information.
45x
250
<<0
not enough information.
450
50
not enough information.
Using the general properties of Gibbs free energy
The standard reaction free energy AG" --835. kJ for this reaction:
2 Al(s) + Fe₂O3(s)-Al₂O3(s) + 2 Fe(s)
Use this information to complete the table below. Round each of your answers to the nearest kJ.
BALAKEN F04
AGO
Focus
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