A(aq) + B(aq) C(aq) 1. Write the mass action expression for Kc, the equilibrium constant. 2. If the system above was at equilibrium and then A was removed, which direction would the equilibrium shift to counteract the disturbance? 3. If the system above was at equilibrium and then C was added, which direction would the equilibrium shift to counteract the disturbance? 4. If the system above was at equilibrium and then a neutralizing agent for B was added, which direction would the equilibrium shift to counteract the disturb ce? 5. List at least two ways that you could shift the equilibrium to the right in the system above. 6. If the temperature of the equilibrium system above is decreased and the concentrations of the reactants A and B decrease, then is the "heat" considered a reactant or product? a. Therefore from left to right, is the reaction endothermic or exothermic? b. What will happen to the value of Kc with the increase in temperature? Increase, decrease or remain constant?

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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A(aq) + B(aq) ← C(aq)
1. Write the mass action expression for Kc, the equilibrium constant.
2. If the system above was at equilibrium and then A was removed, which direction would the
equilibrium shift to counteract the disturbance?
3. If the system above was at equilibrium and then C was added, which direction would the
equilibrium shift to counteract the disturbance?
4. If the system above was at equilibrium and then a neutralizing agent for B was added, which
direction would the equilibrium shift to counteract the disturbance?_
5. List at least two ways that you could shift the equilibrium to the right in the system above.
6. If the temperature of the equilibrium system above is decreased and the concentrations of
the reactants A and B decrease, then is the "heat" considered a reactant or product?
a. Therefore from left to right, is the reaction endothermic or exothermic?
b. What will happen to the value of Kc with the increase in temperature? Increase,
decrease or remain constant?
Transcribed Image Text:A(aq) + B(aq) ← C(aq) 1. Write the mass action expression for Kc, the equilibrium constant. 2. If the system above was at equilibrium and then A was removed, which direction would the equilibrium shift to counteract the disturbance? 3. If the system above was at equilibrium and then C was added, which direction would the equilibrium shift to counteract the disturbance? 4. If the system above was at equilibrium and then a neutralizing agent for B was added, which direction would the equilibrium shift to counteract the disturbance?_ 5. List at least two ways that you could shift the equilibrium to the right in the system above. 6. If the temperature of the equilibrium system above is decreased and the concentrations of the reactants A and B decrease, then is the "heat" considered a reactant or product? a. Therefore from left to right, is the reaction endothermic or exothermic? b. What will happen to the value of Kc with the increase in temperature? Increase, decrease or remain constant?
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