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A chemical engineer 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 56.0 °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. C₂H₂(g) + 50₂ (g) 2Al(s) + Fe₂O3(s) 3CO₂(g) + 4H₂0 (1) Al₂O₂ (s) + 2Fe(s) ΔΗ = – 2220. kJ J AS = -6759. AG = kJ Which is spontaneous? O this reaction O the reverse reaction O neither ΔΗ = AS = -852. kJ J K AG= 0. KJ Which is spontaneous? Othis reaction O the reverse reaction. O neither

A chemical engineer 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 56.0 °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. C₂H₂(g) + 50₂ (g) 2Al(s) + Fe₂O3(s) 3CO₂(g) + 4H₂0 (1) Al₂O₂ (s) + 2Fe(s) ΔΗ = – 2220. kJ J AS = -6759. AG = kJ Which is spontaneous? O this reaction O the reverse reaction O neither ΔΗ = AS = -852. kJ J K AG= 0. KJ Which is spontaneous? Othis reaction O the reverse reaction. O neither

Chemistry: The Molecular Science
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
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A chemical engineer 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 56.0 °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. C₂H₂(g) + 50₂ (8) 3CO₂(g) + 4H₂O(1) 2Al(s) + Fe₂O3 (s) → Al₂O3(s) + 2Fe(s) AH = -2220. kJ AS = -6759. AG = |KJ Which is spontaneous? O this reaction AS = J K the reverse reaction O neither ΔΗ = – 852. kJ J K AG = 0. KJ Which is spontaneous? this reaction O the reverse reaction O neither
Transcribed Image Text:A chemical engineer 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 56.0 °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. C₂H₂(g) + 50₂ (8) 3CO₂(g) + 4H₂O(1) 2Al(s) + Fe₂O3 (s) → Al₂O3(s) + 2Fe(s) AH = -2220. kJ AS = -6759. AG = |KJ Which is spontaneous? O this reaction AS = J K the reverse reaction O neither ΔΗ = – 852. kJ J K AG = 0. KJ Which is spontaneous? this reaction O the reverse reaction O neither
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