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

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Chapter12: Chemical Equilibrium
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Problem 12.40PAE: Because carbonic acid undergoes a second ionization, the student in Exercise 12.39 is concerned that...
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Please answer both subparts correctly.
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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