Exam 14: Chemical Equilibrium: How Much Product Does a Reaction Really Make
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Exam 14: Chemical Equilibrium: How Much Product Does a Reaction Really Make111 Questions
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Consider the reaction of nitrogen and hydrogen gas under standard state conditions to form two moles of ammonia gas (NH3). Write the initial expression for Kc that would be derived from a RICE table if the concentrations of all species were as follows.
[N2] 3 M
[H2] 2 M
[NH3] 1 M
(Essay)
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Write an expression for the equilibrium constant for the formation of two moles of ammonia gas (NH3) from nitrogen and hydrogen in their standard states.
(Essay)
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The chemical equilibrium constant for the following reaction is 2.15 102. 2NO2(g)
N2O4(g)
What is the value of the equilibrium constant for the following reaction?
6NO2(g)
3N2O4(g)
(Multiple Choice)
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The equilibrium constant for the reaction below is 1.3102.
What is the value of the equilibrium constant for the following reaction?

(Multiple Choice)
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At a high temperature, carbon dioxide decomposes to produce carbon monoxide and oxygen. Which expression corresponds to the equilibrium constant for the reaction written as

(Multiple Choice)
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Write the expression for the reaction quotient for the reaction Cu2(aq) 4NH3(aq)
Cu(NH3)42(aq)
(Multiple Choice)
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The equilibrium constant for the reaction below is 17.5.
S(s) 3O2(g)
2SO3(g)
What is the value of the equilibrium constant for the following reaction?
6SO3(g)
3S(s) 9O2(g)
(Short Answer)
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Increasing the temperature of an exothermic reaction results in ________
(Multiple Choice)
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The reaction of bromine gas with chlorine gas, shown here, has a Kp value of 7.20. If a closed vessel was charged with the two reactants, each at an initial partial pressure of 0.500 atm, what would be the equilibrium partial pressure of BrCl(g)? Br2(g) Cl2(g)
2 BrCl(g)
(Multiple Choice)
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Which of the following is the equilibrium expression for the scrubbing reaction of calcium oxide and sulfur dioxide to remove sulfur dioxide from the exhaust gases of coal-fired power plants? CaO(s) SO2(g)
CaSO3(s)
(Multiple Choice)
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Given the reaction below, explain how the equilibrium would be reestablished after each of the following stresses are applied.
4NH3(g) 3O2(g)
2N2(g) 6H2O(g)
H° 12.0 kJ/mol
a) Addition of water
b) Removal of ammonia
c) Increase of the volume of the container
d) Lowering of the reaction temperature
(Essay)
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