A chem v ngineer is studying the two reactions shown in the table below. In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 42.0 °C and constant total pressure. Then, he measures the reaction enthalpy AH 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 his measurements are shown in the table. 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. AH = -1207. kJ J AS = -3779. K ? P, (g) + 6C1, (g) → 4PCI, (g) AG = [| kJ Which is spontaneous? this reaction the reverse reaction O neither AH = -12. kJ AS = Sn(s) + 2C0,(g) Sno, (s) + 2C0(g) AG = 17. kJ Which is spontaneous? this reaction the reverse reaction neither
A chem v ngineer is studying the two reactions shown in the table below. In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 42.0 °C and constant total pressure. Then, he measures the reaction enthalpy AH 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 his measurements are shown in the table. 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. AH = -1207. kJ J AS = -3779. K ? P, (g) + 6C1, (g) → 4PCI, (g) AG = [| kJ Which is spontaneous? this reaction the reverse reaction O neither AH = -12. kJ AS = Sn(s) + 2C0,(g) Sno, (s) + 2C0(g) AG = 17. kJ Which is spontaneous? this reaction the reverse reaction neither
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter16: Thermodynamics: Directionality Of Chemical Reactions
Section: Chapter Questions
Problem 105QRT
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Transcribed Image Text:A chem
ngineer is studying the two reactions shown in the table below.
In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 42.0 °C and constant total pressure. Then,
he measures the reaction enthalpy AH 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 his measurements are shown in the table.
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.
ΔΗ Ξ
- 1207. kJ
J
AS = -3779.
K
P, (g) + 6Cl, (g) → 4PCI, (g)
AG = |||
Which is spontaneous?
this reaction
the reverse reaction
neither
ДН —D — 12. kJ
J
AS =
K
Sn (s) + 2CO,(g).
SnO, (s) + 2C0(g)
AG = 17. kJ
Which is spontaneous?
this reaction
the reverse reaction
neither
O O
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