Question 1

Consider the following reaction at equilibrium: 2NH3 (g)  3 (g)    N2 (g) + 3H2 (g)  Le Châtelier's principle predicts that the moles of   in the reaction container will increase with ________. A) some removal of   from the reaction vessel (V and T constant)  B) a decrease in the total pressure (T constant)  C) addition of some   to the reaction vessel (V and T constant)  D) a decrease in the total volume of the reaction vessel (T constant)  E) an increase in total pressure by the addition of helium gas (V and T constant) " class="answers-bank-image d-inline" rel="preload" > N2 (g) + 3H2 (g) 
Le Châtelier's principle predicts that the moles of 3 (g)    N2 (g) + 3H2 (g)  Le Châtelier's principle predicts that the moles of   in the reaction container will increase with ________. A) some removal of   from the reaction vessel (V and T constant)  B) a decrease in the total pressure (T constant)  C) addition of some   to the reaction vessel (V and T constant)  D) a decrease in the total volume of the reaction vessel (T constant)  E) an increase in total pressure by the addition of helium gas (V and T constant) " class="answers-bank-image d-inline" rel="preload" > in the reaction container will increase with ________.

Accepted Answer

A)  some removal of 3 (g)    N2 (g) + 3H2 (g)  Le Châtelier's principle predicts that the moles of   in the reaction container will increase with ________. 
A)  some removal of   from the reaction vessel (V and T constant)  
B)  a decrease in the total pressure (T constant)  
C)  addition of some   to the reaction vessel (V and T constant)  
D)  a decrease in the total volume of the reaction vessel (T constant)  
E)  an increase in total pressure by the addition of helium gas (V and T constant) " class="answers-bank-image d-inline" rel="preload" > from the reaction vessel (V and T constant) 
B)  a decrease in the total pressure (T constant) 
C)  addition of some 3 (g)    N2 (g) + 3H2 (g)  Le Châtelier's principle predicts that the moles of   in the reaction container will increase with ________. 
A)  some removal of   from the reaction vessel (V and T constant)  
B)  a decrease in the total pressure (T constant)  
C)  addition of some   to the reaction vessel (V and T constant)  
D)  a decrease in the total volume of the reaction vessel (T constant)  
E)  an increase in total pressure by the addition of helium gas (V and T constant) " class="answers-bank-image d-inline" rel="preload" > to the reaction vessel (V and T constant) 
D)  a decrease in the total volume of the reaction vessel (T constant) 
E)  an increase in total pressure by the addition of helium gas (V and T constant)

Question 2

The Keq for the equilibrium below is 5.4 × 1013 at 480.0 °C. 2NO (g) + O2 (g)  eq for the equilibrium below is 5.4 × 1013 at 480.0 °C. 2NO (g) + O2 (g)    2NO2 (g)  What is the value of Keq at this temperature for the following reaction? 4NO (g) + 2O2 (g)    4NO2 (g)  A) 2.9 × 1027 B) 8.5 × 1054 C) 3.4 × 10-28 D) -1.1 × 1014 E) 5.4 × 1013" class="answers-bank-image d-inline" rel="preload" > 2NO2 (g) 
What is the value of Keq at this temperature for the following reaction?
4NO (g) + 2O2 (g)  eq for the equilibrium below is 5.4 × 1013 at 480.0 °C. 2NO (g) + O2 (g)    2NO2 (g)  What is the value of Keq at this temperature for the following reaction? 4NO (g) + 2O2 (g)    4NO2 (g)  A) 2.9 × 1027 B) 8.5 × 1054 C) 3.4 × 10-28 D) -1.1 × 1014 E) 5.4 × 1013" class="answers-bank-image d-inline" rel="preload" > 4NO2 (g)

Accepted Answer

A)  2.9 × 1027
B)  8.5 × 1054
C)  3.4 × 10-28
D)  -1.1 × 1014
E)  5.4 × 1013

Question 3

Which reaction will shift to the right in response to a decrease in volume?

Accepted Answer

A)  N2 (g) + 3H2 (g)  2 (g) + 3H2 (g)    2NH3 (g)  
B)  H2 (g) + Cl2 (g)    2 HCl (g)  
C)  2 SO3 (g)    2 SO2 (g) + O2 (g)  
D)  2HI (g)    H2 (g) + I2 (g)  
E)  2 Fe2O3 (s)    4 Fe (s) + 3O2 (g) " class="answers-bank-image d-inline" rel="preload" > 2NH3 (g) 
B)  H2 (g) + Cl2 (g)  2 (g) + 3H2 (g)    2NH3 (g)  
B)  H2 (g) + Cl2 (g)    2 HCl (g)  
C)  2 SO3 (g)    2 SO2 (g) + O2 (g)  
D)  2HI (g)    H2 (g) + I2 (g)  
E)  2 Fe2O3 (s)    4 Fe (s) + 3O2 (g) " class="answers-bank-image d-inline" rel="preload" > 2 HCl (g) 
C)  2 SO3 (g)  2 (g) + 3H2 (g)    2NH3 (g)  
B)  H2 (g) + Cl2 (g)    2 HCl (g)  
C)  2 SO3 (g)    2 SO2 (g) + O2 (g)  
D)  2HI (g)    H2 (g) + I2 (g)  
E)  2 Fe2O3 (s)    4 Fe (s) + 3O2 (g) " class="answers-bank-image d-inline" rel="preload" > 2 SO2 (g) + O2 (g) 
D)  2HI (g)  2 (g) + 3H2 (g)    2NH3 (g)  
B)  H2 (g) + Cl2 (g)    2 HCl (g)  
C)  2 SO3 (g)    2 SO2 (g) + O2 (g)  
D)  2HI (g)    H2 (g) + I2 (g)  
E)  2 Fe2O3 (s)    4 Fe (s) + 3O2 (g) " class="answers-bank-image d-inline" rel="preload" > H2 (g) + I2 (g) 
E)  2 Fe2O3 (s)  2 (g) + 3H2 (g)    2NH3 (g)  
B)  H2 (g) + Cl2 (g)    2 HCl (g)  
C)  2 SO3 (g)    2 SO2 (g) + O2 (g)  
D)  2HI (g)    H2 (g) + I2 (g)  
E)  2 Fe2O3 (s)    4 Fe (s) + 3O2 (g) " class="answers-bank-image d-inline" rel="preload" > 4 Fe (s) + 3O2 (g)

Question 4

The equilibrium-constant expressed as 1/Keq is for a reaction written in the ________ direction.

Accepted Answer

Question 5

The value of Keq for the following reaction is 0.16: A (g) + B (g)  eq for the following reaction is 0.16: A (g) + B (g)    C (g) + D (g)  The value of Keq at the same temperature for the reaction below is ________. 3C (g) + 3D (g)    3A (g) + 3B (g)  A) 2.4 × 102 B) 2.1 C) 4.1 × 10-3 D) 5.3 × 10-2 E) 6.3" class="answers-bank-image d-inline" rel="preload" > C (g) + D (g) 
The value of Keq at the same temperature for the reaction below is ________.
3C (g) + 3D (g)  eq for the following reaction is 0.16: A (g) + B (g)    C (g) + D (g)  The value of Keq at the same temperature for the reaction below is ________. 3C (g) + 3D (g)    3A (g) + 3B (g)  A) 2.4 × 102 B) 2.1 C) 4.1 × 10-3 D) 5.3 × 10-2 E) 6.3" class="answers-bank-image d-inline" rel="preload" > 3A (g) + 3B (g)

Accepted Answer

A)  2.4 × 102
B)  2.1
C)  4.1 × 10-3
D)  5.3 × 10-2
E)  6.3

Question 6

The equilibrium constant for the gas phase reaction 2SO3 (g)  3 (g)    2SO2 (g) + O2 (g)  Is Keq = 3.6 × 10-3 at 999 K.At equilibrium,________. A) products predominate B) reactants predominate C) roughly equal amounts of products and reactants are present D) only products are present E) only reactants are present" class="answers-bank-image d-inline" rel="preload" > 2SO2 (g) + O2 (g) 
Is Keq = 3.6 × 10-3 at 999 K.At equilibrium,________.

Accepted Answer

A)  products predominate
B)  reactants predominate
C)  roughly equal amounts of products and reactants are present
D)  only products are present
E)  only reactants are present

Question 7

Dinitrogen tetroxide partially decomposes according to the following equilibrium: -3 mol of     .At equilibrium,5.98 × 10-3 mol of     remains.   for this reaction is ________. A) 0.183 B) 0.197 C) 0.212 D) 6.94 ×   E) 2.96 × 10-5" class="answers-bank-image d-inline" rel="preload" > -3 mol of     .At equilibrium,5.98 × 10-3 mol of     remains.   for this reaction is ________. A) 0.183 B) 0.197 C) 0.212 D) 6.94 ×   E) 2.96 × 10-5" class="answers-bank-image d-inline" rel="preload" > (g) → -3 mol of     .At equilibrium,5.98 × 10-3 mol of     remains.   for this reaction is ________. A) 0.183 B) 0.197 C) 0.212 D) 6.94 ×   E) 2.96 × 10-5" class="answers-bank-image d-inline" rel="preload" > (g)  A 1.000-L flask is charged with 9.20 × 10-3 mol of -3 mol of     .At equilibrium,5.98 × 10-3 mol of     remains.   for this reaction is ________. A) 0.183 B) 0.197 C) 0.212 D) 6.94 ×   E) 2.96 × 10-5" class="answers-bank-image d-inline" rel="preload" > -3 mol of     .At equilibrium,5.98 × 10-3 mol of     remains.   for this reaction is ________. A) 0.183 B) 0.197 C) 0.212 D) 6.94 ×   E) 2.96 × 10-5" class="answers-bank-image d-inline" rel="preload" > .At equilibrium,5.98 × 10-3 mol of -3 mol of     .At equilibrium,5.98 × 10-3 mol of     remains.   for this reaction is ________. A) 0.183 B) 0.197 C) 0.212 D) 6.94 ×   E) 2.96 × 10-5" class="answers-bank-image d-inline" rel="preload" > -3 mol of     .At equilibrium,5.98 × 10-3 mol of     remains.   for this reaction is ________. A) 0.183 B) 0.197 C) 0.212 D) 6.94 ×   E) 2.96 × 10-5" class="answers-bank-image d-inline" rel="preload" > remains. -3 mol of     .At equilibrium,5.98 × 10-3 mol of     remains.   for this reaction is ________. A) 0.183 B) 0.197 C) 0.212 D) 6.94 ×   E) 2.96 × 10-5" class="answers-bank-image d-inline" rel="preload" > for this reaction is ________.

Accepted Answer

A)  0.183
B)  0.197
C)  0.212
D)  6.94 × -3 mol of     .At equilibrium,5.98 × 10-3 mol of     remains.   for this reaction is ________. 
A)  0.183 
B)  0.197 
C)  0.212 
D)  6.94 ×   
E)  2.96 × 10-5" class="answers-bank-image d-inline" rel="preload" >
E)  2.96 × 10-5

Question 8

Consider the following reaction at equilibrium: C (s) + H2O (g)  2O (g)    CO (g) + H2 (g)  Which of the following conditions will decrease the partial pressure of CO? A) decreasing the volume of the reaction vessel B) increasing the volume of the reaction vessel C) decreasing the amount of carbon in the system D) decreasing the pressure of the reaction vessel E) adding a catalyst to the reaction system" class="answers-bank-image d-inline" rel="preload" > CO (g) + H2 (g) 
Which of the following conditions will decrease the partial pressure of CO?

Accepted Answer

A)  decreasing the volume of the reaction vessel
B)  increasing the volume of the reaction vessel
C)  decreasing the amount of carbon in the system
D)  decreasing the pressure of the reaction vessel
E)  adding a catalyst to the reaction system

Question 9

Given the following reaction at equilibrium,if Kc = 1.90 × 1019 at 25.0 °C,Kp = ________. H2 (g) + Br2 (g)  c = 1.90 × 1019 at 25.0 °C,Kp = ________. H2 (g) + Br2 (g)    2 HBr (g)  A) 5.26 × 10-20 B) 1.56 × 104 C) 6.44 × 105 D) 1.90 × 1019 E) none of the above" class="answers-bank-image d-inline" rel="preload" > 2 HBr (g)

Accepted Answer

A)  5.26 × 10-20
B)  1.56 × 104
C)  6.44 × 105
D)  1.90 × 1019
E)  none of the above

Question 10

The equilibrium expression for Kp for the reaction below is ________. N2 (g) + O2 (g)  p for the reaction below is ________. N2 (g) + O2 (g)    2NO (g)  A)    B)    C)    D)    E) none of the above" class="answers-bank-image d-inline" rel="preload" > 2NO (g)

Accepted Answer

A)   p for the reaction below is ________. N2 (g) + O2 (g)    2NO (g)  
A)     
B)     
C)     
D)     
E)  none of the above" class="answers-bank-image d-inline" rel="preload" >
B)   p for the reaction below is ________. N2 (g) + O2 (g)    2NO (g)  
A)     
B)     
C)     
D)     
E)  none of the above" class="answers-bank-image d-inline" rel="preload" >
C)   p for the reaction below is ________. N2 (g) + O2 (g)    2NO (g)  
A)     
B)     
C)     
D)     
E)  none of the above" class="answers-bank-image d-inline" rel="preload" >
D)   p for the reaction below is ________. N2 (g) + O2 (g)    2NO (g)  
A)     
B)     
C)     
D)     
E)  none of the above" class="answers-bank-image d-inline" rel="preload" >
E)  none of the above

Question 11

A sealed 1.0 L flask is charged with 0.500 mol of I2 and 0.500 mol of Br2.An equilibrium reaction ensues: I2 (g) + Br2 (g)  2 and 0.500 mol of Br2.An equilibrium reaction ensues: I2 (g) + Br2 (g)    2IBr (g)  When the container contents achieve equilibrium,the flask contains 0.84 mol of IBr.The value of   is ________. A) 11 B) 4.0 C) 110 D) 6.1 E) 2.8" class="answers-bank-image d-inline" rel="preload" > 2IBr (g) 
When the container contents achieve equilibrium,the flask contains 0.84 mol of IBr.The value of 2 and 0.500 mol of Br2.An equilibrium reaction ensues: I2 (g) + Br2 (g)    2IBr (g)  When the container contents achieve equilibrium,the flask contains 0.84 mol of IBr.The value of   is ________. A) 11 B) 4.0 C) 110 D) 6.1 E) 2.8" class="answers-bank-image d-inline" rel="preload" > is ________.

Accepted Answer

A)  11
B)  4.0
C)  110
D)  6.1
E)  2.8

Question 12

The reaction below is exothermic: 2SO2 (g) + O2 (g)  2 (g) + O2 (g)    2SO3 (g)  Le Châtelier's Principle predicts that ________ will result in an increase in the number of moles of   in the reaction container. A) increasing the amount of SO2 B) decreasing the pressure C) increasing the temperature D) removing some oxygen E) increasing the volume of the container" class="answers-bank-image d-inline" rel="preload" > 2SO3 (g) 
Le Châtelier's Principle predicts that ________ will result in an increase in the number of moles of 2 (g) + O2 (g)    2SO3 (g)  Le Châtelier's Principle predicts that ________ will result in an increase in the number of moles of   in the reaction container. A) increasing the amount of SO2 B) decreasing the pressure C) increasing the temperature D) removing some oxygen E) increasing the volume of the container" class="answers-bank-image d-inline" rel="preload" > in the reaction container.

Accepted Answer

A)  increasing the amount of SO2
B)  decreasing the pressure
C)  increasing the temperature
D)  removing some oxygen
E)  increasing the volume of the container

Question 13

Given the following reaction at equilibrium at 450.0 °C: CaCO3 (s)  3 (s)    CaO (s) + CO2 (g)  If pCO2 = 0.0155 atm,Kc = ________. A) 155 B) 0.0821 C) 0.920 D) 2.61 × 10-4 E) 9.20" class="answers-bank-image d-inline" rel="preload" > CaO (s) + CO2 (g) 
If pCO2 = 0.0155 atm,Kc = ________.

Accepted Answer

A)  155
B)  0.0821
C)  0.920
D)  2.61 × 10-4
E)  9.20

Question 14

The value of Keq for the equilibrium N2 (g) + O2 (g)  eq for the equilibrium N2 (g) + O2 (g)    2 NO (g)  Is 4.2 × 10-31 at 27 °C.What is the value of Keq for the equilibrium below? 4 NO (g)    2 N2 (g) + 2 O2 (g)  A) 5.7 × 1060 B) 8.4 × 10-31 C) 4.2 × 1031 D) 8.4 × 1031 E) none of the above" class="answers-bank-image d-inline" rel="preload" > 2 NO (g) 
Is 4.2 × 10-31 at 27 °C.What is the value of Keq for the equilibrium below?
4 NO (g)  eq for the equilibrium N2 (g) + O2 (g)    2 NO (g)  Is 4.2 × 10-31 at 27 °C.What is the value of Keq for the equilibrium below? 4 NO (g)    2 N2 (g) + 2 O2 (g)  A) 5.7 × 1060 B) 8.4 × 10-31 C) 4.2 × 1031 D) 8.4 × 1031 E) none of the above" class="answers-bank-image d-inline" rel="preload" > 2 N2 (g) + 2 O2 (g)

Accepted Answer

A)  5.7 × 1060
B)  8.4 × 10-31
C)  4.2 × 1031
D)  8.4 × 1031
E)  none of the above

Question 15

Which of the following expressions is the correct equilibrium-constant expression for the equilibrium between dinitrogen tetroxide and nitrogen dioxide?
5N2O4(g)  2O4(g)    10NO2 (g)  A) [NO2]10/[N2O4]5 B) [N2O4]10/[NO2]5 C) [NO2]5/[N2O4]10 D) [NO2]5/[N2O4]5 E) [N2O4]5/[NO2]5" class="answers-bank-image d-inline" rel="preload" > 10NO2 (g)

Accepted Answer

A)  [NO2]10/[N2O4]5
B)  [N2O4]10/[NO2]5
C)  [NO2]5/[N2O4]10
D)  [NO2]5/[N2O4]5
E)  [N2O4]5/[NO2]5

Question 16

Which reaction will shift to the left in response to a decrease in volume?

Accepted Answer

A)  2HI (g)  2 (g) + I2 (g)  
B)  H2 (g) + Cl2 (g)    2 HCl (g)  
C)  N2 (g) + 3H2 (g)    2 NH3 (g)  
D)  2 SO3 (g)    2 SO2 (g) + O2 (g)  
E)  4 Fe (s) + 3 O2 (g)    2 Fe2O3 (s) " class="answers-bank-image d-inline" rel="preload" > H2 (g) + I2 (g) 
B)  H2 (g) + Cl2 (g)  2 (g) + I2 (g)  
B)  H2 (g) + Cl2 (g)    2 HCl (g)  
C)  N2 (g) + 3H2 (g)    2 NH3 (g)  
D)  2 SO3 (g)    2 SO2 (g) + O2 (g)  
E)  4 Fe (s) + 3 O2 (g)    2 Fe2O3 (s) " class="answers-bank-image d-inline" rel="preload" > 2 HCl (g) 
C)  N2 (g) + 3H2 (g)  2 (g) + I2 (g)  
B)  H2 (g) + Cl2 (g)    2 HCl (g)  
C)  N2 (g) + 3H2 (g)    2 NH3 (g)  
D)  2 SO3 (g)    2 SO2 (g) + O2 (g)  
E)  4 Fe (s) + 3 O2 (g)    2 Fe2O3 (s) " class="answers-bank-image d-inline" rel="preload" > 2 NH3 (g) 
D)  2 SO3 (g)  2 (g) + I2 (g)  
B)  H2 (g) + Cl2 (g)    2 HCl (g)  
C)  N2 (g) + 3H2 (g)    2 NH3 (g)  
D)  2 SO3 (g)    2 SO2 (g) + O2 (g)  
E)  4 Fe (s) + 3 O2 (g)    2 Fe2O3 (s) " class="answers-bank-image d-inline" rel="preload" > 2 SO2 (g) + O2 (g) 
E)  4 Fe (s) + 3 O2 (g)  2 (g) + I2 (g)  
B)  H2 (g) + Cl2 (g)    2 HCl (g)  
C)  N2 (g) + 3H2 (g)    2 NH3 (g)  
D)  2 SO3 (g)    2 SO2 (g) + O2 (g)  
E)  4 Fe (s) + 3 O2 (g)    2 Fe2O3 (s) " class="answers-bank-image d-inline" rel="preload" > 2 Fe2O3 (s)

Question 17

For the endothermic reaction CaCO3 (s)  3 (s)    CaO (s) + CO2 (g)  Le Châtelier's principle predicts that ________ will result in an increase in the number of moles of   A) increasing the temperature B) decreasing the temperature C) increasing the pressure D) removing some of the CaCO3(s)  E) none of the above" class="answers-bank-image d-inline" rel="preload" > CaO (s) + CO2 (g) 
Le Châtelier's principle predicts that ________ will result in an increase in the number of moles of 3 (s)    CaO (s) + CO2 (g)  Le Châtelier's principle predicts that ________ will result in an increase in the number of moles of   A) increasing the temperature B) decreasing the temperature C) increasing the pressure D) removing some of the CaCO3(s)  E) none of the above" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  increasing the temperature
B)  decreasing the temperature
C)  increasing the pressure
D)  removing some of the CaCO3(s) 
E)  none of the above

Exam 15: Chemical Equilibrium

The equilibrium expression for K_p for the reaction below is ________. N₂ (g) + O₂ (g) 2NO (g)

Correct Answer
verified

Consider the following reaction at equilibrium: 2NH₃ (g) N₂ (g) + 3H₂ (g) Le Châtelier's principle predicts that the moles of in the reaction container will increase with ________.

Correct Answer
verified

Which of the following expressions is the correct equilibrium-constant expression for the equilibrium between dinitrogen tetroxide and nitrogen dioxide? 5N₂O4(g) 10NO₂ (g)

Correct Answer
verified

Which reaction will shift to the left in response to a decrease in volume?

Correct Answer
verified

The value of K_eq for the equilibrium N₂ (g) + O₂ (g) 2 NO (g) Is 4.2 × 10^-31 at 27 °C.What is the value of K_eq for the equilibrium below? 4 NO (g) 2 N₂ (g) + 2 O₂ (g)

Correct Answer
verified

The K_eq for the equilibrium below is 5.4 × 10¹³ at 480.0 °C. 2NO (g) + O₂ (g) 2NO₂ (g) What is the value of K_eq at this temperature for the following reaction? 4NO (g) + 2O₂ (g) 4NO₂ (g)

Correct Answer
verified

Consider the following reaction at equilibrium: C (s) + H₂O (g) CO (g) + H₂ (g) Which of the following conditions will decrease the partial pressure of CO?

Correct Answer
verified

The equilibrium-constant expressed as 1/K_eq is for a reaction written in the ________ direction.

Correct Answer
verified

The reaction below is exothermic: 2SO₂ (g) + O₂ (g) 2SO₃ (g) Le Châtelier's Principle predicts that ________ will result in an increase in the number of moles of in the reaction container.

Correct Answer
verified

The equilibrium constant for the gas phase reaction 2SO₃ (g) 2SO₂ (g) + O₂ (g) Is K_eq = 3.6 × 10^-3 at 999 K.At equilibrium,________.

Correct Answer
verified

For the endothermic reaction CaCO₃ (s) CaO (s) + CO₂ (g) Le Châtelier's principle predicts that ________ will result in an increase in the number of moles of

Correct Answer
verified

A sealed 1.0 L flask is charged with 0.500 mol of I₂ and 0.500 mol of Br₂.An equilibrium reaction ensues: I₂ (g) + Br₂ (g) 2IBr (g) When the container contents achieve equilibrium,the flask contains 0.84 mol of IBr.The value of is ________.

Correct Answer
verified

Dinitrogen tetroxide partially decomposes according to the following equilibrium: (g) → (g) A 1.000-L flask is charged with 9.20 × 10^-3 mol of .At equilibrium,5.98 × 10^-3 mol of remains. for this reaction is ________.

Correct Answer
verified

Given the following reaction at equilibrium at 450.0 °C: CaCO₃ (s) CaO (s) + CO₂ (g) If pCO₂ = 0.0155 atm,K_c = ________.

Correct Answer
verified

The value of K_eq for the following reaction is 0.16: A (g) + B (g) C (g) + D (g) The value of K_eq at the same temperature for the reaction below is ________. 3C (g) + 3D (g) 3A (g) + 3B (g)

Correct Answer
verified

Which reaction will shift to the right in response to a decrease in volume?

Correct Answer
verified

Given the following reaction at equilibrium,if K_c = 1.90 × 10¹⁹at 25.0 °C,K_p = ________. H₂ (g) + Br₂ (g) 2 HBr (g)

Correct Answer
verified

Exam 15: Chemical Equilibrium

The equilibrium expression for Kp for the reaction below is ________. N2 (g) + O2 (g) 2NO (g)

Correct AnswerverifiedShow Answer

Consider the following reaction at equilibrium: 2NH3 (g) N2 (g) + 3H2 (g) Le Châtelier's principle predicts that the moles of in the reaction container will increase with ________.

Correct AnswerverifiedShow Answer

Which of the following expressions is the correct equilibrium-constant expression for the equilibrium between dinitrogen tetroxide and nitrogen dioxide? 5N2O4(g) 10NO2 (g)

Correct AnswerverifiedShow Answer

Which reaction will shift to the left in response to a decrease in volume?

Correct AnswerverifiedShow Answer

The value of Keq for the equilibrium N2 (g) + O2 (g) 2 NO (g) Is 4.2 × 10-31 at 27 °C.What is the value of Keq for the equilibrium below? 4 NO (g) 2 N2 (g) + 2 O2 (g)

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The Keq for the equilibrium below is 5.4 × 1013 at 480.0 °C. 2NO (g) + O2 (g) 2NO2 (g) What is the value of Keq at this temperature for the following reaction? 4NO (g) + 2O2 (g) 4NO2 (g)

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Consider the following reaction at equilibrium: C (s) + H2O (g) CO (g) + H2 (g) Which of the following conditions will decrease the partial pressure of CO?

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The equilibrium-constant expressed as 1/Keq is for a reaction written in the ________ direction.

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The reaction below is exothermic: 2SO2 (g) + O2 (g) 2SO3 (g) Le Châtelier's Principle predicts that ________ will result in an increase in the number of moles of in the reaction container.

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The equilibrium constant for the gas phase reaction 2SO3 (g) 2SO2 (g) + O2 (g) Is Keq = 3.6 × 10-3 at 999 K.At equilibrium,________.

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For the endothermic reaction CaCO3 (s) CaO (s) + CO2 (g) Le Châtelier's principle predicts that ________ will result in an increase in the number of moles of

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A sealed 1.0 L flask is charged with 0.500 mol of I2 and 0.500 mol of Br2.An equilibrium reaction ensues: I2 (g) + Br2 (g) 2IBr (g) When the container contents achieve equilibrium,the flask contains 0.84 mol of IBr.The value of is ________.

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Dinitrogen tetroxide partially decomposes according to the following equilibrium: (g) → (g) A 1.000-L flask is charged with 9.20 × 10-3 mol of .At equilibrium,5.98 × 10-3 mol of remains. for this reaction is ________.

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Given the following reaction at equilibrium at 450.0 °C: CaCO3 (s) CaO (s) + CO2 (g) If pCO2 = 0.0155 atm,Kc = ________.

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The value of Keq for the following reaction is 0.16: A (g) + B (g) C (g) + D (g) The value of Keq at the same temperature for the reaction below is ________. 3C (g) + 3D (g) 3A (g) + 3B (g)

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Which reaction will shift to the right in response to a decrease in volume?

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Given the following reaction at equilibrium,if Kc = 1.90 × 1019 at 25.0 °C,Kp = ________. H2 (g) + Br2 (g) 2 HBr (g)

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The equilibrium expression for K_p for the reaction below is ________. N₂ (g) + O₂ (g) 2NO (g)

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Consider the following reaction at equilibrium: 2NH₃ (g) N₂ (g) + 3H₂ (g) Le Châtelier's principle predicts that the moles of in the reaction container will increase with ________.

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Which of the following expressions is the correct equilibrium-constant expression for the equilibrium between dinitrogen tetroxide and nitrogen dioxide? 5N₂O4(g) 10NO₂ (g)

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The value of K_eq for the equilibrium N₂ (g) + O₂ (g) 2 NO (g) Is 4.2 × 10^-31 at 27 °C.What is the value of K_eq for the equilibrium below? 4 NO (g) 2 N₂ (g) + 2 O₂ (g)

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The K_eq for the equilibrium below is 5.4 × 10¹³ at 480.0 °C. 2NO (g) + O₂ (g) 2NO₂ (g) What is the value of K_eq at this temperature for the following reaction? 4NO (g) + 2O₂ (g) 4NO₂ (g)

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Consider the following reaction at equilibrium: C (s) + H₂O (g) CO (g) + H₂ (g) Which of the following conditions will decrease the partial pressure of CO?

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The equilibrium-constant expressed as 1/K_eq is for a reaction written in the ________ direction.

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The reaction below is exothermic: 2SO₂ (g) + O₂ (g) 2SO₃ (g) Le Châtelier's Principle predicts that ________ will result in an increase in the number of moles of in the reaction container.

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The equilibrium constant for the gas phase reaction 2SO₃ (g) 2SO₂ (g) + O₂ (g) Is K_eq = 3.6 × 10^-3 at 999 K.At equilibrium,________.

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For the endothermic reaction CaCO₃ (s) CaO (s) + CO₂ (g) Le Châtelier's principle predicts that ________ will result in an increase in the number of moles of

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A sealed 1.0 L flask is charged with 0.500 mol of I₂ and 0.500 mol of Br₂.An equilibrium reaction ensues: I₂ (g) + Br₂ (g) 2IBr (g) When the container contents achieve equilibrium,the flask contains 0.84 mol of IBr.The value of is ________.

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Dinitrogen tetroxide partially decomposes according to the following equilibrium: (g) → (g) A 1.000-L flask is charged with 9.20 × 10^-3 mol of .At equilibrium,5.98 × 10^-3 mol of remains. for this reaction is ________.

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Given the following reaction at equilibrium at 450.0 °C: CaCO₃ (s) CaO (s) + CO₂ (g) If pCO₂ = 0.0155 atm,K_c = ________.

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The value of K_eq for the following reaction is 0.16: A (g) + B (g) C (g) + D (g) The value of K_eq at the same temperature for the reaction below is ________. 3C (g) + 3D (g) 3A (g) + 3B (g)

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Given the following reaction at equilibrium,if K_c = 1.90 × 10¹⁹at 25.0 °C,K_p = ________. H₂ (g) + Br₂ (g) 2 HBr (g)

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