Question 1

Consider the following equilibria: 2SO3(g)  3(g)    2SO2(g) + O2(g) Kc = 2.3 × 10-7 2NO3(g)    2NO2(g) + O2(g) Kc = 1.4 × 10-3 Calculate the equilibrium constant for the reaction SO2(g) + NO3(g)    SO3(g) + NO2(g) . A) 78 B) 1.3 × 10-2 C) 1.6 × 10-4 D) 3.2 × 10-10 E) 6.1 × 103" class="answers-bank-image d-inline" rel="preload" > 2SO2(g) + O2(g) Kc = 2.3 × 10-7
2NO3(g)  3(g)    2SO2(g) + O2(g) Kc = 2.3 × 10-7 2NO3(g)    2NO2(g) + O2(g) Kc = 1.4 × 10-3 Calculate the equilibrium constant for the reaction SO2(g) + NO3(g)    SO3(g) + NO2(g) . A) 78 B) 1.3 × 10-2 C) 1.6 × 10-4 D) 3.2 × 10-10 E) 6.1 × 103" class="answers-bank-image d-inline" rel="preload" > 2NO2(g) + O2(g) Kc = 1.4 × 10-3
Calculate the equilibrium constant for the reaction
SO2(g) + NO3(g)  3(g)    2SO2(g) + O2(g) Kc = 2.3 × 10-7 2NO3(g)    2NO2(g) + O2(g) Kc = 1.4 × 10-3 Calculate the equilibrium constant for the reaction SO2(g) + NO3(g)    SO3(g) + NO2(g) . A) 78 B) 1.3 × 10-2 C) 1.6 × 10-4 D) 3.2 × 10-10 E) 6.1 × 103" class="answers-bank-image d-inline" rel="preload" > SO3(g) + NO2(g) .

Accepted Answer

A)  78
B)  1.3 × 10-2
C)  1.6 × 10-4
D)  3.2 × 10-10
E)  6.1 × 103F) A) and B)
G) B) and E)

Question 2

For the reaction 2NOCl(g)  2(g) ,Kc = 8.0 at a certain temperature.What concentration of NOCl must be put into an empty 4.00 - reaction vessel in order that the equilibrium concentration of NOCl is 1.00 M? A) 1.26 M B) 2.25 M C) 2.50 M D) 3.52 M E) 11.0 M" class="answers-bank-image d-inline" rel="preload" > 2NO(g) + Cl2(g) ,Kc = 8.0 at a certain temperature.What concentration of NOCl must be put into an empty 4.00 - reaction vessel in order that the equilibrium concentration of NOCl is 1.00 M?

Accepted Answer

A)  1.26 M
B)  2.25 M
C)  2.50 M
D)  3.52 M
E)  11.0 MF) B) and D)
G) B) and C)

Question 3

The reaction of nitrogen with oxygen to form nitrogen monoxide can be represented by the following equation. N2(g) + O2(g)  2(g) + O2(g)    2NO(g)  At 2000.°C,the equilibrium constant,Kc,has a value of 4.10 × 10-4.What is the value of KP? (R = 0.08206 L • atm/K • mol)  A) 2.17 × 10-8 B) 4.10 × 10-4 C) 7.65 × 10-2 D) 2.20 ×10-6 E) 2.44 ×103" class="answers-bank-image d-inline" rel="preload" > 2NO(g) 
At 2000.°C,the equilibrium constant,Kc,has a value of 4.10 × 10-4.What is the value of KP?
(R = 0.08206 L • atm/K • mol)

Accepted Answer

A)  2.17 × 10-8
B)  4.10 × 10-4
C)  7.65 × 10-2
D)  2.20 ×10-6
E)  2.44 ×103F) A) and D)
G) A) and C)

Question 4

Calculate KP for the reaction 2NOCl(g)  P for the reaction 2NOCl(g)    2NO(g) + Cl2(g) at 400.°C if Kc at 400.°C for this reaction is 2.1 × 10-2.(R = 0.08206 L • atm/K • mol)  A) 6.4 × 10-3 B) 1.7 × 10-3 C) 0.69 D) 1.2 E) 3.8 × 10-4" class="answers-bank-image d-inline" rel="preload" > 2NO(g) + Cl2(g) at 400.°C if Kc at 400.°C for this reaction is 2.1 × 10-2.(R = 0.08206 L • atm/K • mol)

Accepted Answer

A)  6.4 × 10-3
B)  1.7 × 10-3
C)  0.69
D)  1.2
E)  3.8 × 10-4F) A) and B)
G) C) and D)

Question 5

Consider the equilibrium:
A(s)  B(s)+ C(g); ΔH°rxn > 0
Predict and explain how or whether the following actions would affect this equilibrium.
a.adding more solid A
b.lowering the temperature c.increasing the pressure on the system by reducing its volume d.adding helium gas to increase the total pressure a.No effect.Pure solids and liquids have constant concentration,regardless of total amount.

Accepted Answer

b.By a shift in the exothermic direction...

Question 6

For the following reaction at equilibrium in a reaction vessel,which one of these changes would cause the I2 concentration to increase? 2NOI(g)  2 concentration to increase? 2NOI(g)    2NO(g) + I2(g) ,ΔHºrxn = 45.3 kJ/mol A) Add more NOI B) Add more NO C) Increase the pressure D) Compress the gas mixture into a smaller volume E) Decrease the temperature" class="answers-bank-image d-inline" rel="preload" > 2NO(g) + I2(g) ,ΔHºrxn = 45.3 kJ/mol

Accepted Answer

A)  Add more NOI
B)  Add more NO
C)  Increase the pressure
D)  Compress the gas mixture into a smaller volume
E)  Decrease the temperatureF) C) and E)
G) C) and D)

Question 7

The reaction 2H2O2(g)  2O2(g)    2H2O(g) + O2(g) is exothermic,ΔHºrxn = -210 kJ/mol.Which one of the following is correct? A) KP at 800 K is smaller than KP at 1200 K. B) Temperature does not affect KP C) KP depends only on the pressure. D) KP at 1200 K is smaller than KP at 800 K. E) KP depends on total pressure as well as temperature." class="answers-bank-image d-inline" rel="preload" > 2H2O(g) + O2(g) is exothermic,ΔHºrxn = -210 kJ/mol.Which one of the following is correct?

Accepted Answer

A)  KP at 800 K is smaller than KP at 1200 K.
B)  Temperature does not affect KP
C)  KP depends only on the pressure.
D)  KP at 1200 K is smaller than KP at 800 K.
E)  KP depends on total pressure as well as temperature.F) A) and D)
G) B) and E)

Question 8

What is the name for Qc?

Accepted Answer

A)  Reversibility expression
B)  Reaction expression
C)  Equilibrium expression
D)  Reaction quotient
E)  Mass actionF) B) and D)
G) B) and C)

Question 9

Hydrogen peroxide may decompose to form water and oxygen gas according to the following reaction. 2H2O2(g)  2O2(g)    2H2O(g) + O2(g)  In a particular experiment,1.75 moles of H2O2 were placed in a 2.5-L reaction chamber at 307ºC.After equilibrium was reached,1.20 moles of H2O2 remained.What is Kc for the reaction? A) 2.0 × 10-4 B) 2.3 × 10-2 C) 2.4 × 10-3 D) 5.5 × 10-3 E) 3.9 × 10-4" class="answers-bank-image d-inline" rel="preload" > 2H2O(g) + O2(g) 
In a particular experiment,1.75 moles of H2O2 were placed in a 2.5-L reaction chamber at
307ºC.After equilibrium was reached,1.20 moles of H2O2 remained.What is Kc for the reaction?

Accepted Answer

A)  2.0 × 10-4
B)  2.3 × 10-2
C)  2.4 × 10-3
D)  5.5 × 10-3
E)  3.9 × 10-4F) A) and B)
G) A) and C)

Question 10

The following reaction is at equilibrium in a sealed container. N2(g) + 3H2(g)  2(g) + 3H2(g)    2NH3(g) ; ΔH°rxn c? A) Adding more NH3 B) Adding more N2 C) Increasing the pressure D) Lowering the temperature E) Adding a catalyst" class="answers-bank-image d-inline" rel="preload" > 2NH3(g) ; ΔH°rxn c?

Accepted Answer

A)  Adding more NH3
B)  Adding more N2
C)  Increasing the pressure
D)  Lowering the temperature
E)  Adding a catalystF) D) and E)
G) All of the above

Question 11

During a chemical reaction,what defines when the concentrations of the reactants and products reach a constant level?

Accepted Answer

A)  Elementary process
B)  Reversible reaction
C)  Rate law
D)  Rate constant
E)  EquilibriumF) C) and D)
G) All of the above

Question 12

A(n)________________ means that the products of the reaction can react to form reactants.

Accepted Answer

The answer of A(n)________________ means that the products of the...

Question 13

Carbon tetrachloride reacts at high temperatures with oxygen to produce two toxic gases, phosgene and chlorine.
CCl4(g) + ½O2(g)  4(g) + ½O2(g)    COCl2(g) + Cl2(g) ,Kc = 4.4 × 109 at 1000 K What is Kc for the following reaction? 2CCl4(g) + O2(g)    2COCl2(g) + 2Cl2(g)  A) 6.6 × 104 B) 4.4 × 109 C) 8.8 × 109 D) 1.9 × 1019 E) 2.3 × 10-10" class="answers-bank-image d-inline" rel="preload" > COCl2(g) + Cl2(g) ,Kc = 4.4 × 109 at 1000 K
What is Kc for the following reaction?
2CCl4(g) + O2(g)  4(g) + ½O2(g)    COCl2(g) + Cl2(g) ,Kc = 4.4 × 109 at 1000 K What is Kc for the following reaction? 2CCl4(g) + O2(g)    2COCl2(g) + 2Cl2(g)  A) 6.6 × 104 B) 4.4 × 109 C) 8.8 × 109 D) 1.9 × 1019 E) 2.3 × 10-10" class="answers-bank-image d-inline" rel="preload" > 2COCl2(g) + 2Cl2(g)

Accepted Answer

A)  6.6 × 104
B)  4.4 × 109
C)  8.8 × 109
D)  1.9 × 1019
E)  2.3 × 10-10F) C) and E)
G) B) and D)

Question 14

The equilibrium constant for the reaction Ni(s) + 4CO(g)  4(g) is 5.0× 104 at 25ºC. What is the equilibrium constant for the following reaction? Ni(CO) 4(g)    Ni(s) + 4CO(g) ? A) 2.0 × 10-5 B) 2.5 × 109 C) 5.0 × 104 D) 5.0 × 10-4 E) 2.0 × 10-3" class="answers-bank-image d-inline" rel="preload" > Ni(CO) 4(g) is 5.0× 104 at 25ºC. What is the equilibrium constant for the following reaction?
Ni(CO) 4(g)  4(g) is 5.0× 104 at 25ºC. What is the equilibrium constant for the following reaction? Ni(CO) 4(g)    Ni(s) + 4CO(g) ? A) 2.0 × 10-5 B) 2.5 × 109 C) 5.0 × 104 D) 5.0 × 10-4 E) 2.0 × 10-3" class="answers-bank-image d-inline" rel="preload" > Ni(s) + 4CO(g) ?

Accepted Answer

A)  2.0 × 10-5
B)  2.5 × 109
C)  5.0 × 104
D)  5.0 × 10-4
E)  2.0 × 10-3F) C) and E)
G) C) and D)

Question 15

Which is correct?

Accepted Answer

A)  If ΔG  K.
B)  If ΔG 
C)  If ΔG 
D)  If ΔGo 
E)  If ΔGo  K.F) A) and D)
G) A) and E)

Question 16

Which equation is correct?

Accepted Answer

A)  ΔG = ΔG° - RT logKeq
B)  ΔG° = - RT lnK
C)  ΔG = RT lnQ
D)  ΔG = -RT logQ
E)  ΔG° = -RT logKeqF) B) and E)
G) A) and E)

Question 17

Consider this reaction at equilibrium: 2H2O2(g)  2O2(g)    2H2O(g) + O2(g) ,ΔHºrxn = -210 kJ/mol If the volume of the system is expanded at constant temperature,what change will occur in the position of the equilibrium? A) A shift to produce more H2O2 B) A shift to produce more O2 C) No change will occur. D) A shift to produce less H2O E) The pressure decreases." class="answers-bank-image d-inline" rel="preload" > 2H2O(g) + O2(g) ,ΔHºrxn = -210 kJ/mol
If the volume of the system is expanded at constant temperature,what change will occur in the position of the equilibrium?

Accepted Answer

A)  A shift to produce more H2O2
B)  A shift to produce more O2
C)  No change will occur.
D)  A shift to produce less H2O
E)  The pressure decreases.F) A) and B)
G) D) and E)

Question 18

For the common allotropes of carbon (graphite and diamond) ,C(gr)  3/mol and 3.42 cm3/mol; ΔHf of diamond is 1.90 kJ/mol.These data suggest that the formation of diamond is favored at A) low temperatures and low pressures. B) high temperatures and low pressures. C) low temperatures and high pressures. D) high temperatures and high pressures. E) None of the is correct." class="answers-bank-image d-inline" rel="preload" > C(dia) with equilibrium constant K = 0.32.The molar volumes of graphite and diamond are,respectively, 5.30 cm3/mol and 3.42 cm3/mol; ΔHf of diamond is 1.90 kJ/mol.These data suggest that the formation of diamond is favored at

Accepted Answer

A)  low temperatures and low pressures.
B)  high temperatures and low pressures.
C)  low temperatures and high pressures.
D)  high temperatures and high pressures.
E)  None of the is correct.F) A) and E)
G) None of the above

Question 19

For the following reaction at 25ºC,is 3 × 1024. 2SO2(g) + O2(g)  24. 2SO2(g) + O2(g)    2SO3(g)  What is Kc at this temperature? (R = 0.08206 L • atm/K • mol)  A) 1 × 1023 B) 1 × 1024 C) 3 × 1024 D) 6 × 1024 E) 7 × 1025" class="answers-bank-image d-inline" rel="preload" > 2SO3(g) 
What is Kc at this temperature? (R = 0.08206 L • atm/K • mol)

Accepted Answer

A)  1 × 1023
B)  1 × 1024
C)  3 × 1024
D)  6 × 1024
E)  7 × 1025F) B) and C)
G) A) and E)

Question 20

Which is the correct mass-action expression,Qc,for the following chemical reaction? Sn2+(aq) + ½ O2(g) + 3H2O(l)  2+(aq) + ½ O2(g) + 3H2O(l)    SnO2(s) + 2H3O+(aq)  A)    B)    C)    D)    E) None of these expressions is correct." class="answers-bank-image d-inline" rel="preload" > SnO2(s) + 2H3O+(aq)

Accepted Answer

A)   2+(aq) + ½ O2(g) + 3H2O(l)    SnO2(s) + 2H3O+(aq)  
A)     
B)     
C)     
D)     
E)  None of these expressions is correct." class="answers-bank-image d-inline" rel="preload" >
B)   2+(aq) + ½ O2(g) + 3H2O(l)    SnO2(s) + 2H3O+(aq)  
A)     
B)     
C)     
D)     
E)  None of these expressions is correct." class="answers-bank-image d-inline" rel="preload" >
C)   2+(aq) + ½ O2(g) + 3H2O(l)    SnO2(s) + 2H3O+(aq)  
A)     
B)     
C)     
D)     
E)  None of these expressions is correct." class="answers-bank-image d-inline" rel="preload" >
D)   2+(aq) + ½ O2(g) + 3H2O(l)    SnO2(s) + 2H3O+(aq)  
A)     
B)     
C)     
D)     
E)  None of these expressions is correct." class="answers-bank-image d-inline" rel="preload" >
E)  None of these expressions is correct.F) C) and E)
G) B) and C)

Exam 15: Chemical Equilibrium

Correct Answer
verified

During a chemical reaction,what defines when the concentrations of the reactants and products reach a constant level?

Correct Answer
verified

Consider this reaction at equilibrium: 2H₂O₂(g) 2H₂O(g) + O₂(g) ,ΔHº_rxn = -210 kJ/mol If the volume of the system is expanded at constant temperature,what change will occur in the position of the equilibrium?

Correct Answer
verified

For the following reaction at 25ºC,is 3 × 10²⁴. 2SO₂(g) + O₂(g) 2SO₃(g) What is K_c at this temperature? (R = 0.08206 L • atm/K • mol)

Correct Answer
verified

The reaction 2H₂O₂(g) 2H₂O(g) + O₂(g) is exothermic,ΔHº_rxn = -210 kJ/mol.Which one of the following is correct?

Correct Answer
verified

Which is correct?

Correct Answer
verified

Which equation is correct?

Correct Answer
verified

The equilibrium constant for the reaction Ni(s) + 4CO(g) Ni(CO) ₄(g) is 5.0× 10⁴ at 25ºC. What is the equilibrium constant for the following reaction? Ni(CO) ₄(g) Ni(s) + 4CO(g) ?

Correct Answer
verified

Correct Answer
verified
b.By a shift in the exothermic direction...
View Answer

For the reaction 2NOCl(g) 2NO(g) + Cl₂(g) ,K_c = 8.0 at a certain temperature.What concentration of NOCl must be put into an empty 4.00 - reaction vessel in order that the equilibrium concentration of NOCl is 1.00 M?

Correct Answer
verified

The following reaction is at equilibrium in a sealed container. N₂(g) + 3H₂(g) 2NH₃(g) ; ΔH°_rxn < 0 Which,if any,of the following actions will increase the value of the equilibrium constant,K_c?

Correct Answer
verified

For the common allotropes of carbon (graphite and diamond) ,C(gr) C(dia) with equilibrium constant K = 0.32.The molar volumes of graphite and diamond are,respectively, 5.30 cm³/mol and 3.42 cm³/mol; ΔHf of diamond is 1.90 kJ/mol.These data suggest that the formation of diamond is favored at

Correct Answer
verified

The reaction of nitrogen with oxygen to form nitrogen monoxide can be represented by the following equation. N₂(g) + O₂(g) 2NO(g) At 2000.°C,the equilibrium constant,K_c,has a value of 4.10 × 10^-4.What is the value of K_P? (R = 0.08206 L • atm/K • mol)

Correct Answer
verified

For the following reaction at equilibrium in a reaction vessel,which one of these changes would cause the I₂ concentration to increase? 2NOI(g) 2NO(g) + I₂(g) ,ΔHº_rxn = 45.3 kJ/mol

Correct Answer
verified

What is the name for Q_c?

Correct Answer
verified

A(n)________________ means that the products of the reaction can react to form reactants.

Correct Answer
verified

Carbon tetrachloride reacts at high temperatures with oxygen to produce two toxic gases, phosgene and chlorine. CCl₄(g) + ½O₂(g) COCl₂(g) + Cl₂(g) ,K_c = 4.4 × 10⁹ at 1000 K What is K_c for the following reaction? 2CCl₄(g) + O₂(g) 2COCl₂(g) + 2Cl₂(g)

Correct Answer
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Calculate K_P for the reaction 2NOCl(g) 2NO(g) + Cl₂(g) at 400.°C if K_c at 400.°C for this reaction is 2.1 × 10^-2.(R = 0.08206 L • atm/K • mol)

Correct Answer
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Consider the following equilibria: 2SO₃(g) 2SO₂(g) + O₂(g) K_c = 2.3 × 10^-7 2NO₃(g) 2NO₂(g) + O₂(g) K_c = 1.4 × 10^-3 Calculate the equilibrium constant for the reaction SO₂(g) + NO₃(g) SO₃(g) + NO₂(g) .

Correct Answer
verified

Which is the correct mass-action expression,Qc,for the following chemical reaction? Sn²⁺(aq) + ½ O₂(g) + 3H₂O(l) SnO₂(s) + 2H₃O⁺(aq)

Correct Answer
verified

Exam 15: Chemical Equilibrium

Correct AnswerverifiedShow Answer

During a chemical reaction,what defines when the concentrations of the reactants and products reach a constant level?

Correct AnswerverifiedShow Answer

Consider this reaction at equilibrium: 2H2O2(g) 2H2O(g) + O2(g) ,ΔHºrxn = -210 kJ/mol If the volume of the system is expanded at constant temperature,what change will occur in the position of the equilibrium?

Correct AnswerverifiedShow Answer

For the following reaction at 25ºC,is 3 × 1024. 2SO2(g) + O2(g) 2SO3(g) What is Kc at this temperature? (R = 0.08206 L • atm/K • mol)

Correct AnswerverifiedShow Answer

The reaction 2H2O2(g) 2H2O(g) + O2(g) is exothermic,ΔHºrxn = -210 kJ/mol.Which one of the following is correct?

Correct AnswerverifiedShow Answer

Which is correct?

Correct AnswerverifiedShow Answer

Which equation is correct?

Correct AnswerverifiedShow Answer

The equilibrium constant for the reaction Ni(s) + 4CO(g) Ni(CO) 4(g) is 5.0× 104 at 25ºC. What is the equilibrium constant for the following reaction? Ni(CO) 4(g) Ni(s) + 4CO(g) ?

Correct AnswerverifiedShow Answer

Correct Answerverifiedb.By a shift in the exothermic direction...View AnswerShow Answer

For the reaction 2NOCl(g) 2NO(g) + Cl2(g) ,Kc = 8.0 at a certain temperature.What concentration of NOCl must be put into an empty 4.00 - reaction vessel in order that the equilibrium concentration of NOCl is 1.00 M?

Correct AnswerverifiedShow Answer

The following reaction is at equilibrium in a sealed container. N2(g) + 3H2(g) 2NH3(g) ; ΔH°rxn < 0 Which,if any,of the following actions will increase the value of the equilibrium constant,Kc?

Correct AnswerverifiedShow Answer

For the common allotropes of carbon (graphite and diamond) ,C(gr) C(dia) with equilibrium constant K = 0.32.The molar volumes of graphite and diamond are,respectively, 5.30 cm3/mol and 3.42 cm3/mol; ΔHf of diamond is 1.90 kJ/mol.These data suggest that the formation of diamond is favored at

Correct AnswerverifiedShow Answer

The reaction of nitrogen with oxygen to form nitrogen monoxide can be represented by the following equation. N2(g) + O2(g) 2NO(g) At 2000.°C,the equilibrium constant,Kc,has a value of 4.10 × 10-4.What is the value of KP? (R = 0.08206 L • atm/K • mol)

Correct AnswerverifiedShow Answer

For the following reaction at equilibrium in a reaction vessel,which one of these changes would cause the I2 concentration to increase? 2NOI(g) 2NO(g) + I2(g) ,ΔHºrxn = 45.3 kJ/mol

Correct AnswerverifiedShow Answer

What is the name for Qc?

Correct AnswerverifiedShow Answer

A(n)________________ means that the products of the reaction can react to form reactants.

Correct AnswerverifiedShow Answer

Carbon tetrachloride reacts at high temperatures with oxygen to produce two toxic gases, phosgene and chlorine. CCl4(g) + ½O2(g) COCl2(g) + Cl2(g) ,Kc = 4.4 × 109 at 1000 K What is Kc for the following reaction? 2CCl4(g) + O2(g) 2COCl2(g) + 2Cl2(g)

Correct AnswerverifiedShow Answer

Calculate KP for the reaction 2NOCl(g) 2NO(g) + Cl2(g) at 400.°C if Kc at 400.°C for this reaction is 2.1 × 10-2.(R = 0.08206 L • atm/K • mol)

Correct AnswerverifiedShow Answer

Consider the following equilibria: 2SO3(g) 2SO2(g) + O2(g) Kc = 2.3 × 10-7 2NO3(g) 2NO2(g) + O2(g) Kc = 1.4 × 10-3 Calculate the equilibrium constant for the reaction SO2(g) + NO3(g) SO3(g) + NO2(g) .

Correct AnswerverifiedShow Answer

Which is the correct mass-action expression,Qc,for the following chemical reaction? Sn2+(aq) + ½ O2(g) + 3H2O(l) SnO2(s) + 2H3O+(aq)

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Consider this reaction at equilibrium: 2H₂O₂(g) 2H₂O(g) + O₂(g) ,ΔHº_rxn = -210 kJ/mol If the volume of the system is expanded at constant temperature,what change will occur in the position of the equilibrium?

Correct Answer
verified

For the following reaction at 25ºC,is 3 × 10²⁴. 2SO₂(g) + O₂(g) 2SO₃(g) What is K_c at this temperature? (R = 0.08206 L • atm/K • mol)

Correct Answer
verified

The reaction 2H₂O₂(g) 2H₂O(g) + O₂(g) is exothermic,ΔHº_rxn = -210 kJ/mol.Which one of the following is correct?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The equilibrium constant for the reaction Ni(s) + 4CO(g) Ni(CO) ₄(g) is 5.0× 10⁴ at 25ºC. What is the equilibrium constant for the following reaction? Ni(CO) ₄(g) Ni(s) + 4CO(g) ?

Correct Answer
verified

Correct Answer
verified
b.By a shift in the exothermic direction...
View Answer

For the reaction 2NOCl(g) 2NO(g) + Cl₂(g) ,K_c = 8.0 at a certain temperature.What concentration of NOCl must be put into an empty 4.00 - reaction vessel in order that the equilibrium concentration of NOCl is 1.00 M?

Correct Answer
verified

The following reaction is at equilibrium in a sealed container. N₂(g) + 3H₂(g) 2NH₃(g) ; ΔH°_rxn < 0 Which,if any,of the following actions will increase the value of the equilibrium constant,K_c?

Correct Answer
verified

For the common allotropes of carbon (graphite and diamond) ,C(gr) C(dia) with equilibrium constant K = 0.32.The molar volumes of graphite and diamond are,respectively, 5.30 cm³/mol and 3.42 cm³/mol; ΔHf of diamond is 1.90 kJ/mol.These data suggest that the formation of diamond is favored at

Correct Answer
verified

The reaction of nitrogen with oxygen to form nitrogen monoxide can be represented by the following equation. N₂(g) + O₂(g) 2NO(g) At 2000.°C,the equilibrium constant,K_c,has a value of 4.10 × 10^-4.What is the value of K_P? (R = 0.08206 L • atm/K • mol)

Correct Answer
verified

For the following reaction at equilibrium in a reaction vessel,which one of these changes would cause the I₂ concentration to increase? 2NOI(g) 2NO(g) + I₂(g) ,ΔHº_rxn = 45.3 kJ/mol

Correct Answer
verified

What is the name for Q_c?

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Carbon tetrachloride reacts at high temperatures with oxygen to produce two toxic gases, phosgene and chlorine. CCl₄(g) + ½O₂(g) COCl₂(g) + Cl₂(g) ,K_c = 4.4 × 10⁹ at 1000 K What is K_c for the following reaction? 2CCl₄(g) + O₂(g) 2COCl₂(g) + 2Cl₂(g)

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Calculate K_P for the reaction 2NOCl(g) 2NO(g) + Cl₂(g) at 400.°C if K_c at 400.°C for this reaction is 2.1 × 10^-2.(R = 0.08206 L • atm/K • mol)

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Consider the following equilibria: 2SO₃(g) 2SO₂(g) + O₂(g) K_c = 2.3 × 10^-7 2NO₃(g) 2NO₂(g) + O₂(g) K_c = 1.4 × 10^-3 Calculate the equilibrium constant for the reaction SO₂(g) + NO₃(g) SO₃(g) + NO₂(g) .

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Which is the correct mass-action expression,Qc,for the following chemical reaction? Sn²⁺(aq) + ½ O₂(g) + 3H₂O(l) SnO₂(s) + 2H₃O⁺(aq)

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