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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. 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: A(aq) = B(aq) K-1 K>1 0 krev Not enough information given ktwd [B] [A] <[B] rated> ratesev ✓IA] and [ [A] and [B] remain constant rateid 1 Rate constants, kind and krev: kiwd=krev ktwd > Krev ktwd [B] [A] <[B] KN [A] and [B] remain constant 5 of 6 Rates, rated and rate rev Vrated-raterev rated> rate rev rated 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: Khas increased K has not changed K has decreased Rate constants, krwd and krev: kiwd has increased krev has increased ktwd-krev kfwd has not changed Krev has not changed ktwd>Krev kwd has decreased krev has decreased kfwd rate both rates have increased both rates have decreased only rated 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. 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: A(aq) = B(aq) K-1 K>1 0 krev Not enough information given ktwd [B] [A] <[B] rated> ratesev ✓IA] and [ [A] and [B] remain constant rateid 1 Rate constants, kind and krev: kiwd=krev ktwd > Krev ktwd [B] [A] <[B] KN [A] and [B] remain constant 5 of 6 Rates, rated and rate rev Vrated-raterev rated> rate rev rated 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: Khas increased K has not changed K has decreased Rate constants, krwd and krev: kiwd has increased krev has increased ktwd-krev kfwd has not changed Krev has not changed ktwd>Krev kwd has decreased krev has decreased kfwd rate both rates have increased both rates have decreased only rated has increased

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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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. 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: A(aq) = B(aq) K-1 K>1 0<K<1 Not enough information given Rate constants, kind and krev: ktwd=krev kiwd > krev Not enough information given ktwd <Krev Concentrations, [A] and [B]: [A] = [B] Rates, rated and raterev (ratek[A] and rate = k[B]) Katetud fefwd raterev [A]> [B] [A] <[B] rated> ratesev ✓IA] and [ [A] and [B] remain constant rateid <rate 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, kind and krev: kiwd=krev ktwd > Krev ktwd <Krev Concentrations, [A] and [B]: [A]=[B] [A] >[B] [A] <[B] KN [A] and [B] remain constant 5 of 6 Rates, rated and rate rev Vrated-raterev rated> rate rev rated <ratere 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 Rate constants, kid and krev: kiwd has increased VK has not changed Kwd has not changed Khas decreased Concentrations, [A] and [B]: [A] and [B] have not changed both [A] and [B] have increased only [A] has increased only [B] has increased Rates, rated and rate rev rated-rate rated> 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: Khas increased K has not changed K has decreased Rate constants, krwd and krev: kiwd has increased krev has increased ktwd-krev kfwd has not changed Krev has not changed ktwd>Krev kwd has decreased krev has decreased kfwd <krev Concentrations, [A] and [B]: [A] and [B] have not changed [A] has increased [B] has increased Rates, rated and raterev: rated-rate rated> rate both rates have increased both rates have decreased only rated has increased
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. 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: A(aq) = B(aq) K-1 K>1 0<K<1 Not enough information given Rate constants, kind and krev: ktwd=krev kiwd > krev Not enough information given ktwd <Krev Concentrations, [A] and [B]: [A] = [B] Rates, rated and raterev (ratek[A] and rate = k[B]) Katetud fefwd raterev [A]> [B] [A] <[B] rated> ratesev ✓IA] and [ [A] and [B] remain constant rateid <rate 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, kind and krev: kiwd=krev ktwd > Krev ktwd <Krev Concentrations, [A] and [B]: [A]=[B] [A] >[B] [A] <[B] KN [A] and [B] remain constant 5 of 6 Rates, rated and rate rev Vrated-raterev rated> rate rev rated <ratere 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 Rate constants, kid and krev: kiwd has increased VK has not changed Kwd has not changed Khas decreased Concentrations, [A] and [B]: [A] and [B] have not changed both [A] and [B] have increased only [A] has increased only [B] has increased Rates, rated and rate rev rated-rate rated> 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: Khas increased K has not changed K has decreased Rate constants, krwd and krev: kiwd has increased krev has increased ktwd-krev kfwd has not changed Krev has not changed ktwd>Krev kwd has decreased krev has decreased kfwd <krev Concentrations, [A] and [B]: [A] and [B] have not changed [A] has increased [B] has increased Rates, rated and raterev: rated-rate rated> rate both rates have increased both rates have decreased only rated has increased
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