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26)lf at 298K for a certain reaction mixture AG >0 and AG <0, which of the following statements about this reaction mixture should be true? a. From this mixture the reaction will proceed forward to reach equilibrium and the equilibrium mixture is dominated by products. b. From this mixture the reaction will proceed forward to reach equilibrium and the equilibrium mixture is dominated by reactants. c. From this mixture the reaction will proceed backward to reach equilibrium and the equilibrium mixture is dominated by products. d. From this mixture the reaction will proceed backward to reach equilibrium and the equilibrium mixture is dominated by reactants. 27) Consider the decomposition of hydrogen fluoride at 298K: 2HF(g) → H₂(g) + F2(g) AG° = 38.3 kJ Given that at 298K [HF] = 0.070atm, [H₂] = 0.025atm, and [F2] = 0.0035atm, which of the following statements about this reaction at 298K is correct? a. Under these conditions Q> K and the reaction is spontaneous. b. Under these conditions Q< K and the reaction is spontaneous. c. Under these conditions Q = 1 and the system is at equilibrium. d. Under these conditions Q< K and the reverse reaction is spontaneous. Inder these conditions Q> K and the reverse reaction is spontaneous. P

26)lf at 298K for a certain reaction mixture AG >0 and AG <0, which of the following statements about this reaction mixture should be true? a. From this mixture the reaction will proceed forward to reach equilibrium and the equilibrium mixture is dominated by products. b. From this mixture the reaction will proceed forward to reach equilibrium and the equilibrium mixture is dominated by reactants. c. From this mixture the reaction will proceed backward to reach equilibrium and the equilibrium mixture is dominated by products. d. From this mixture the reaction will proceed backward to reach equilibrium and the equilibrium mixture is dominated by reactants. 27) Consider the decomposition of hydrogen fluoride at 298K: 2HF(g) → H₂(g) + F2(g) AG° = 38.3 kJ Given that at 298K [HF] = 0.070atm, [H₂] = 0.025atm, and [F2] = 0.0035atm, which of the following statements about this reaction at 298K is correct? a. Under these conditions Q> K and the reaction is spontaneous. b. Under these conditions Q< K and the reaction is spontaneous. c. Under these conditions Q = 1 and the system is at equilibrium. d. Under these conditions Q< K and the reverse reaction is spontaneous. Inder these conditions Q> K and the reverse reaction is spontaneous. P

Chemistry for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter12: Chemical Equilibrium
Section: Chapter Questions
Problem 12.41PAE: Because calcium carbonate is a sink for CO32- in a lake, the student in Exercise 12.39 decides to go...
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26) If at 298K for a certain reaction mixture AG> 0 and AG < 0, which of the following statements about this reaction mixture should be true? a. From this mixture the reaction will proceed forward to reach equilibrium and the equilibrium mixture is dominated by products. b. From this mixture the reaction will proceed forward to reach equilibrium and the equilibrium mixture is dominated by reactants. c. From this mixture the reaction will proceed backward to reach equilibrium and the equilibrium mixture is dominated by products. d. From this mixture the reaction will proceed backward to reach equilibrium and the equilibrium mixture is dominated by reactants. 27) Consider the decomposition of hydrogen fluoride at 298K: 2HF(g) → H₂(g) + F₂(g) AG° = 38.3 kJ Given that at 298K [HF] = 0.070atm, [H2] = 0.025atm, and [F2] = 0.0035atm, which of the following statements about this reaction at 298K is correct? a. Under these conditions Q> K and the reaction is spontaneous. b. Under these conditions Q< K and the reaction is spontaneous. c. Under these conditions Q = 1 and the system is at equilibrium. d. Under these conditions Q< K and the reverse reaction is spontaneous. e. Under these conditions Q> K and the reverse reaction is spontaneous.
Transcribed Image Text:26) If at 298K for a certain reaction mixture AG> 0 and AG < 0, which of the following statements about this reaction mixture should be true? a. From this mixture the reaction will proceed forward to reach equilibrium and the equilibrium mixture is dominated by products. b. From this mixture the reaction will proceed forward to reach equilibrium and the equilibrium mixture is dominated by reactants. c. From this mixture the reaction will proceed backward to reach equilibrium and the equilibrium mixture is dominated by products. d. From this mixture the reaction will proceed backward to reach equilibrium and the equilibrium mixture is dominated by reactants. 27) Consider the decomposition of hydrogen fluoride at 298K: 2HF(g) → H₂(g) + F₂(g) AG° = 38.3 kJ Given that at 298K [HF] = 0.070atm, [H2] = 0.025atm, and [F2] = 0.0035atm, which of the following statements about this reaction at 298K is correct? a. Under these conditions Q> K and the reaction is spontaneous. b. Under these conditions Q< K and the reaction is spontaneous. c. Under these conditions Q = 1 and the system is at equilibrium. d. Under these conditions Q< K and the reverse reaction is spontaneous. e. Under these conditions Q> K and the reverse reaction is spontaneous.
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