4) If this reaction was exothermic and the equilibrium mixture from part 3 was cooled to 5 °C, which of the following options apply when the mixture is at equilibrium again? Compared to before the mixture was cooled... Equilibrium constant, K: K has increased K has not changed K has decreased Rate constants, kfwd and krev: kfwd has increased krev has increased kfwd = krev kfwd has not changed ☐ krev has not changed kfwd > Krev ☐kfwd has decreased ☐ krev has decreased kfwd raterev both rates have increased both rates have decreased only ratefwd has increased Check all that apply. For each quantity (K, k, [], and rate) in questions 1 to 4, there is at least one correct option (that means there can be more than one correct answer). Full credit is only awarded if all correct answers are selected. A(aq) = B(aq) 1) At 25 °C, two species, A and B, are at equilibrium: What does this information tell you about the following quantities? Equilibrium constant, K: ☐ K=0 0 1 Rate constants, kfwd and krev: Not enough information given kfwd > Krev kfwd = Krev ✓ Not enough information given kfwd < Krev Concentrations, [A] and [B]: [A] = [B] [A] >[B] [A]<[B] ✓ 1A) and (B валений efwd=raterev ratefwd > raterev [A] and [B] remain constant ratefwd 1 Rate constants, kfwd and krev: kfwd = krev kfwd > krev kfwd < krev Concentrations, [A] and [B]: [A] = [B] [A] >[B] [A] <[B] KAJ and [A] and [B] remain constant Rates, ratefwd and raterev: ratefwd=raterev ratefwd > rate rev ratefwd rate rev both rates have increased
4) If this reaction was exothermic and the equilibrium mixture from part 3 was cooled to 5 °C, which of the following options apply when the mixture is at equilibrium again? Compared to before the mixture was cooled... Equilibrium constant, K: K has increased K has not changed K has decreased Rate constants, kfwd and krev: kfwd has increased krev has increased kfwd = krev kfwd has not changed ☐ krev has not changed kfwd > Krev ☐kfwd has decreased ☐ krev has decreased kfwd raterev both rates have increased both rates have decreased only ratefwd has increased Check all that apply. For each quantity (K, k, [], and rate) in questions 1 to 4, there is at least one correct option (that means there can be more than one correct answer). Full credit is only awarded if all correct answers are selected. A(aq) = B(aq) 1) At 25 °C, two species, A and B, are at equilibrium: What does this information tell you about the following quantities? Equilibrium constant, K: ☐ K=0 0 1 Rate constants, kfwd and krev: Not enough information given kfwd > Krev kfwd = Krev ✓ Not enough information given kfwd < Krev Concentrations, [A] and [B]: [A] = [B] [A] >[B] [A]<[B] ✓ 1A) and (B валений efwd=raterev ratefwd > raterev [A] and [B] remain constant ratefwd 1 Rate constants, kfwd and krev: kfwd = krev kfwd > krev kfwd < krev Concentrations, [A] and [B]: [A] = [B] [A] >[B] [A] <[B] KAJ and [A] and [B] remain constant Rates, ratefwd and raterev: ratefwd=raterev ratefwd > rate rev ratefwd rate rev both rates have increased
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter12: Chemical Equilibrium
Section: Chapter Questions
Problem 3RQ
Related questions
Question
![4) If this reaction was exothermic and the equilibrium mixture from part 3 was cooled to 5 °C, which of the
following options apply when the mixture is at equilibrium again?
Compared to before the mixture was cooled...
Equilibrium constant, K:
K has increased
K has not changed
K has decreased
Rate constants, kfwd and krev: kfwd has increased
krev has increased
kfwd = krev
kfwd has not changed
☐ krev has not changed
kfwd > Krev
☐kfwd has decreased
☐ krev has decreased
kfwd <krev
Concentrations, [A] and [B]: [A] and [B] have not changed ☐ [A] has increased [B] has increased
Rates, ratefwd and raterev:
ratefwd=raterev
ratefwd > raterev
both rates have increased
both rates have decreased
only ratefwd has increased](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7bc30bfd-54a4-45be-8be6-a7bac17a47af%2F60bafea1-d8bb-473e-90fb-0314fb00126d%2Fg3nm6ps_processed.png&w=3840&q=75)
Transcribed Image Text:4) If this reaction was exothermic and the equilibrium mixture from part 3 was cooled to 5 °C, which of the
following options apply when the mixture is at equilibrium again?
Compared to before the mixture was cooled...
Equilibrium constant, K:
K has increased
K has not changed
K has decreased
Rate constants, kfwd and krev: kfwd has increased
krev has increased
kfwd = krev
kfwd has not changed
☐ krev has not changed
kfwd > Krev
☐kfwd has decreased
☐ krev has decreased
kfwd <krev
Concentrations, [A] and [B]: [A] and [B] have not changed ☐ [A] has increased [B] has increased
Rates, ratefwd and raterev:
ratefwd=raterev
ratefwd > raterev
both rates have increased
both rates have decreased
only ratefwd has increased
![Check all that apply. For each quantity (K, k, [], and rate) in questions 1 to 4, there is at least one correct option (that
means there can be more than one correct answer). Full credit is only awarded if all correct answers are selected.
A(aq) = B(aq)
1) At 25 °C, two species, A and B, are at equilibrium:
What does this information tell you about the following quantities?
Equilibrium constant, K:
☐ K=0
0<K<1
K=1
☐ K > 1
Rate constants, kfwd and krev:
Not enough information given
kfwd > Krev
kfwd = Krev
✓ Not enough information given
kfwd < Krev
Concentrations, [A] and [B]: [A] = [B]
[A] >[B]
[A]<[B]
✓ 1A) and (B
валений
efwd=raterev
ratefwd > raterev
[A] and [B] remain constant
ratefwd <raterev
Rates, ratefwd and raterev:
(rateswd=kiw[A] and rate rev = krev[B])
2) The equilibrium mixture of species A and B was analyzed and turned out to contain 100 times more B than A.
With this new piece of information, consider all options again:
Equilibrium constant, K:
□ K=0
□ 0 < K < 1
☐ K = 1
☐ K > 1
Rate constants, kfwd and krev:
kfwd = krev
kfwd > krev
kfwd < krev
Concentrations, [A] and [B]: [A] = [B]
[A] >[B]
[A] <[B]
KAJ and
[A] and [B] remain constant
Rates, ratefwd and raterev:
ratefwd=raterev
ratefwd > rate rev
ratefwd <raterev
3) If some A was added to the mixture from part 2 at equilibrium, which of the following options apply when the
mixture is at equilibrium again?
Compared to before some A was added...
Equilibrium constant, K:
K has increased
Khas not changed
K has decreased
Kfwd has not changed
only [A] has increased
Rate constants, kfwd and krev: kfwd has increased
Concentrations, [A] and [B]: [A] and [B] have not changed
both [A] and [B] have increased ☐ only [B] has increased
Rates, ratefwd and raterev:
ratefwd=raterev
ratefwd > rate rev
both rates have increased](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7bc30bfd-54a4-45be-8be6-a7bac17a47af%2F60bafea1-d8bb-473e-90fb-0314fb00126d%2F5qr94nt_processed.png&w=3840&q=75)
Transcribed Image Text:Check all that apply. For each quantity (K, k, [], and rate) in questions 1 to 4, there is at least one correct option (that
means there can be more than one correct answer). Full credit is only awarded if all correct answers are selected.
A(aq) = B(aq)
1) At 25 °C, two species, A and B, are at equilibrium:
What does this information tell you about the following quantities?
Equilibrium constant, K:
☐ K=0
0<K<1
K=1
☐ K > 1
Rate constants, kfwd and krev:
Not enough information given
kfwd > Krev
kfwd = Krev
✓ Not enough information given
kfwd < Krev
Concentrations, [A] and [B]: [A] = [B]
[A] >[B]
[A]<[B]
✓ 1A) and (B
валений
efwd=raterev
ratefwd > raterev
[A] and [B] remain constant
ratefwd <raterev
Rates, ratefwd and raterev:
(rateswd=kiw[A] and rate rev = krev[B])
2) The equilibrium mixture of species A and B was analyzed and turned out to contain 100 times more B than A.
With this new piece of information, consider all options again:
Equilibrium constant, K:
□ K=0
□ 0 < K < 1
☐ K = 1
☐ K > 1
Rate constants, kfwd and krev:
kfwd = krev
kfwd > krev
kfwd < krev
Concentrations, [A] and [B]: [A] = [B]
[A] >[B]
[A] <[B]
KAJ and
[A] and [B] remain constant
Rates, ratefwd and raterev:
ratefwd=raterev
ratefwd > rate rev
ratefwd <raterev
3) If some A was added to the mixture from part 2 at equilibrium, which of the following options apply when the
mixture is at equilibrium again?
Compared to before some A was added...
Equilibrium constant, K:
K has increased
Khas not changed
K has decreased
Kfwd has not changed
only [A] has increased
Rate constants, kfwd and krev: kfwd has increased
Concentrations, [A] and [B]: [A] and [B] have not changed
both [A] and [B] have increased ☐ only [B] has increased
Rates, ratefwd and raterev:
ratefwd=raterev
ratefwd > rate rev
both rates have increased
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