A chemical engineer is studying the two reactions shown in the table below. In each case, she fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 57.0 °C and constant total pressure. Then, she measures the reaction enthalpy í and reaction entropy As of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of her measurements are shown in the table. Complete the table. That is, calculate ▲g for the first reaction and as for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. AH-1353. kJ J AS-4109. 9. Do
A chemical engineer is studying the two reactions shown in the table below. In each case, she fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 57.0 °C and constant total pressure. Then, she measures the reaction enthalpy í and reaction entropy As of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of her measurements are shown in the table. Complete the table. That is, calculate ▲g for the first reaction and as for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. AH-1353. kJ J AS-4109. 9. Do
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter12: Thermodynamic Processes And Thermochemistry
Section: Chapter Questions
Problem 78AP
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Question
![O ENTROPY AND FREE ENERGY
Calculating dG from dH and dS
A chemical engineer is studying the two reactions shown in the table
below.
In each case, she fills a reaction vessel with some mixture of the
reactants and products at a constant temperature of 57.0 °C and constant
total pressure. Then, she measures the reaction enthalpy H and
reaction entropy As of the first reaction, and the reaction enthalpy AH
and reaction free energy AG of the second reaction. The results of her
measurements are shown in the table.
2CH₂OH(g) + 30₂(g) 2CO₂(g) + 4H₂O(g)
Complete the table. That is, calculate AG for the first reaction and As for
the second. (Round your answer to zero decimal places.) Then, decide
whether, under the conditions the engineer has set up, the reaction is
spontaneous, the reverse reaction is spontaneous, or neither forward
nor reverse reaction is spontaneous because the system is at
equilibrium.
3CO₂(g) + 4H₂O(1)→ C₂H₂(g) + 50₂ (g)
ΔΗ –
-1353. kJ
AS-4109.
AG - KJ
Which is spontaneous?
O this reaction
O the reverse reaction
O neither
ΔΗ = 2220. kJ
5-0²k
AS =
J
K
0
:
AG33. kJ
Which is spontaneous?
O this reaction
O the reverse reaction
Oneither
On](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb9aefb8e-0e61-429a-9e9e-42e0be9cb154%2Fe17b3807-865a-40a1-9e77-49ebb1ecda8b%2Ffpnml0p_processed.jpeg&w=3840&q=75)
Transcribed Image Text:O ENTROPY AND FREE ENERGY
Calculating dG from dH and dS
A chemical engineer is studying the two reactions shown in the table
below.
In each case, she fills a reaction vessel with some mixture of the
reactants and products at a constant temperature of 57.0 °C and constant
total pressure. Then, she measures the reaction enthalpy H and
reaction entropy As of the first reaction, and the reaction enthalpy AH
and reaction free energy AG of the second reaction. The results of her
measurements are shown in the table.
2CH₂OH(g) + 30₂(g) 2CO₂(g) + 4H₂O(g)
Complete the table. That is, calculate AG for the first reaction and As for
the second. (Round your answer to zero decimal places.) Then, decide
whether, under the conditions the engineer has set up, the reaction is
spontaneous, the reverse reaction is spontaneous, or neither forward
nor reverse reaction is spontaneous because the system is at
equilibrium.
3CO₂(g) + 4H₂O(1)→ C₂H₂(g) + 50₂ (g)
ΔΗ –
-1353. kJ
AS-4109.
AG - KJ
Which is spontaneous?
O this reaction
O the reverse reaction
O neither
ΔΗ = 2220. kJ
5-0²k
AS =
J
K
0
:
AG33. kJ
Which is spontaneous?
O this reaction
O the reverse reaction
Oneither
On
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