(a)
Interpretation:
For the reaction
Concept Introduction:
Le Chatelier’s principle:
If some forces applied, the system at equilibrium will get disrupted. This change in equilibrium can be due to the change in pressure or temperature. The change in reactant concentration can also disrupt the equilibrium. Over time, the forward and backward reaction become equal and will attain a new equilibrium. The equilibrium will shifts to right, if more products are formed and the system will shifts to left, if more reactants are formed.
The principle states that if some stress is applied to the system at equilibrium, the system will adjust itself in a direction which reduces the stress.
(b)
Interpretation:
For the reaction
Concept Introduction:
Le Chatelier’s principle:
If some forces applied, the system at equilibrium will get disrupted. This change in equilibrium can be due to the change in pressure or temperature. The change in reactant concentration can also disrupt the equilibrium. Over time, the forward and backward reaction become equal and will attain a new equilibrium. The equilibrium will shifts to right, if more products are formed and the system will shifts to left, if more reactants are formed.
The principle states that if some stress is applied to the system at equilibrium, the system will adjust itself in a direction which reduces the stress.
(c)
Interpretation:
For the reaction
Concept Introduction:
Le Chatelier’s principle:
The principle states that if some stress is applied to the system at equilibrium, the system will adjust itself in a direction which reduces the stress and attain a new equilibrium.
(d)
Interpretation:
For the reaction
Concept Introduction:
Le Chatelier’s principle:
The principle states that if some stress is applied to the system at equilibrium, the system will adjust itself in a direction which reduces the stress and attain a new equilibrium.
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Chapter 9 Solutions
General, Organic, and Biological Chemistry
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- . Explain what it means that a reaction has reached a state of chemical equilibrium. Explain why equilibrium is a dynamic state: Does a reaction really “stop” when the system reaches a state of equilibrium? Explain why, once a chemical system has reached equilibrium, the concentrations of all reactants remain constant with time. Why does this constancy of concentration not contradict our picture of equilibrium as being dynamic? What happens to the rates of the forward and reverse reactions as a system proceeds to equilibrium from a starting point where only reactants are present?arrow_forwardIndicate whether or not each of the following changes would affect the value of a systems equilibrium constant. a. Removal of a reactant from the equilibrium mixture b. Decrease in the systems total pressure c. Decrease in the systems temperature d. Addition of a catalyst to the equilibrium mixturearrow_forwardTell what will happen to each equilibrium concentration in the following when the indicated stress is applied and a new equilibrium position is established. a. LiOH(s)+CO2(g)LiHCO3(s)+heat; CO2 is removed. b. 2NaHCO3(s)+heatNa2O(s)+2CO2(g)+H2O(g); The system is cooled. c. CaCO3(s)+heatCaO(s)+CO2(g); The system is cooled.arrow_forward
- When a mixture of hydrogen and bromine is maintained at normal atmospheric pressure and heated above 200. °C in a closed container, the hydrogen and bromine react to form hydrogen bromide and a gas-phase equilibrium is established. Write a balanced chemical equation for the equilibrium reaction. Use bond enthalpies from Table 6.2 ( Sec. 6-6b) to estimate the enthalpy change for the reaction. Based on your answers to parts (a) and (b), which is more important in determining the position of this equilibrium, the entropy effect or the energy effect? In which direction will the equilibrium shift as the temperature increases above 200. °C? Explain. Suppose that the pressure were increased to triple its initial value. In which direction would the equilibrium shift? Why is the equilibrium not established at room temperature?arrow_forwardWrite a balanced chemical equation for a totally gaseous equilibrium system that would lead to the following equilibrium constant expression. Keq=[N2]2[H2O]6[NH3]4[O2]3arrow_forwardThe value of the equilibrium constant, K, is dependent on which of the following? (There may be more than one answer.) a. the initial concentrations of the reactants b. the initial concentrations of the products c. the temperature of the system d. the nature of the reactants and products Explain.arrow_forward
- For the generalized chemical reaction A(g)+B(g)C(g)+D(g) determine whether the concentration of A in an equilibrium mixture will (1) increase, (2) decrease, or (3) not change when each of the following changes is effected. a. concentration of B is increased b. concentration of C is decreased c. concentration of D is increased d. concentration of D is decreasedarrow_forwardBased on the diagrams, chemical reaction, and reaction conditions depicted in Problem 9-83, which of the diagrams represents the equilibrium mixture if the numerical value of the equilibrium constant is 9.0?arrow_forwardFor the generalized chemical reaction A(g)+B(g)C(g)+D(g) determine whether the concentration of D in an equilibrium mixture will (1) increase, (2) decrease, or (3) not change when each of the following changes is effected. a. concentration of A is increased b. concentration of B is decreased c. concentration of C is increased d. concentration of C is decreasedarrow_forward
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