The Keq for the equilibrium below is 50. H2 (g)+ I2 (g) 2HI (g) What is the value of Keq for the following reaction? 2HI (g) H2 (g)+ I2 (g)

A) 100 B) 0.50 C) 0.020 D) 2500 E) -50 A) 100 B) 0.50 C) 0.020 D) 2500 E) -50 C

The value of Keq for the equilibrium CO2 (g)+ 2H2 (g) CH3OH (g) Is 14.5 at 483 °C.What is the value of Keq for the equilibrium below? 1/2 CO2 + H2 (g) 1/2 CH3OH (g)

A) 7.30 B) 7.35 C) 0.136 D) 3.81 E) 6.90 × 10-2 A) 7.30 B) 7.35 C) 0.136 D) 3.81 E) 6.90 × 10-2

Consider the following reaction at equilibrium: 2CO2 (g) 2CO (g)+ O2 (g)ΔH° = -514 kJ Le Châtelier's principle predicts that a decrease in temperature will ________.

A) decrease the partial pressure of O2 (g) B) increase the partial pressure of CO2 (g) C) decrease the value of the equilibrium constant D) increase the value of the equilibrium constant E) decrease the partial pressure of CO A) decrease the partial pressure of O2 (g) B) increase the partial pressure of CO2 (g) C) decrease the value of the equilibrium constant D) increase the value of the equilibrium constant E) decrease the partial pressure of CO

The Keq for the equilibrium below is 50. H2 (g)+ I2 (g) 2HI (g) What is the value of Keq for the following reaction? H2 (g)+ I2 (g) HI (g)

A) 25 B) 2500 C) 7.07 D) 100 E) -50 A) 25 B) 2500 C) 7.07 D) 100 E) -50

At elevated temperatures,molecular hydrogen and molecular bromine react to partially form hydrogen bromide: H2 (g)+ Br2 (g) 2HBr (g) A mixture of 0.682 mol of H2 and 0.440 mol of Br2 is combined in a reaction vessel with a volume of At equilibrium at 700 K,there are 0.546 mol of H2 present.At equilibrium,there are ________ mol of Br2 present in the reaction vessel.

A) 0.000 B) 0.440 C) 0.546 D) 0.136 E) 0.304 A) 0.000 B) 0.440 C) 0.546 D) 0.136 E) 0.304

Carbon monoxide and chlorine gas react to produce COCl2 gas.The for the reaction is 1.49 × 108 at 100.0 °C: In an equilibrium mixture of the three gases, = = 7.70 × 10-4 atm.The partial pressure of the product,phosgene ( ),is ________ atm.

A) 2.51 × 1014 B) 3.98 × 10-15 C) 1.15 × 105 D) 8.83 × 101 E) 1.92 × 1011 A) 2.51 × 1014 B) 3.98 × 10-15 C) 1.15 × 105 D) 8.83 × 101 E) 1.92 × 1011

At 200 °C,the equilibrium constant (Kp)for the conversion of NO to oxygen and nitrogen gas is 2.40 × 103.A closed vessel is charged with 36.1 atm of NO.At equilibrium,the partial pressure of O2 is ________ atm.

A) 294 B) 6.00 C) 35.7 D) 1.50 × 10-2 E) 17.9 A) 294 B) 6.00 C) 35.7 D) 1.50 × 10-2 E) 17.9

The Keq for the equilibrium below is 7.52 × 10-2 at 480.0 °C. 2Cl2 (g)+ 2H2O (g) 4HCl (g)+ O2 (g) What is the value of Keq at this temperature for the following reaction? 8HCl (g)+ 2O2 (g) 4Cl2 (g)+ 4H2O (g)

A) 1.77 × 102 B) 5.66 × 10-3 C) 1.50 × 10-1 D) -7.52 × 10-2 E) 7.52 × 10-2 A) 1.77 × 102 B) 5.66 × 10-3 C) 1.50 × 10-1 D) -7.52 × 10-2 E) 7.52 × 10-2

At 400 K,the equilibrium constant for the reaction Br2 (g)+ Cl2 (g) 2BrCl (g) Is Kp = 7.0.A closed vessel at 400 K is charged with 1.00 atm of Br2 (g),1.00 atm of Cl2 (g),and 2.00 atm of BrCl (g).Use Q to determine which of the statements below is true.

A) The equilibrium partial pressures of Br2, Cl2, and BrCl will be the same as the initial values. B) The equilibrium partial pressure of BrCl (g)will be 4.00 atm. C) The equilibrium partial pressure of Br2 will be greater than 1.00 atm. D) At equilibrium, the total pressure in the vessel will be less than the initial total pressure. E) The reaction will go to completion since there are equal amounts of Br2 and Cl2. A) The equilibrium partial pressures of Br2, Cl2, and BrCl will be the same as the initial values. B) The equilibrium partial pressure of BrCl (g)will be 4.00 atm. C) The equilibrium partial pressure of Br2 will be greater than 1.00 atm. D) At equilibrium, the total pressure in the vessel will be less than the initial total pressure. E) The reaction will go to completion since there are equal amounts of Br2 and Cl2.

The equilibrium-constant expression for the reaction Ti (s)+ 2Cl2 (g) TiCl4 (l) Is given by

A) B) C) D) [Cl2 (g)]-2 E) A) B) C) D) [Cl2 (g)]-2 E)

Exam 15: Chemical Equilibrium

Which of the following expressions is the correct equilibrium-constant expression for the equilibrium between dinitrogen tetroxide and nitrogen dioxide? N₂O₄ (g) 2NO₂ (g)

Free

(Multiple Choice)

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Question 1

Correct Answer:

Verified

Which of the following expressions is the correct equilibrium-constant expression for the reaction below? HF (aq)+ H₂O (l) H₃O⁺ (aq)+ F^- (aq)

Free

(Multiple Choice)

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Question 2

Correct Answer:

Verified

The K_eq for the equilibrium below is 50. H₂ (g)+ I₂ (g) 2HI (g) What is the value of K_eq for the following reaction? 2HI (g) H₂ (g)+ I₂ (g)

Free

(Multiple Choice)

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Question 3

Correct Answer:

Verified

The value of K_eq for the equilibrium CO₂ (g)+ 2H₂ (g) CH₃OH (g) Is 14.5 at 483 °C.What is the value of K_eq for the equilibrium below? 1/2 CO₂ + H₂ (g) 1/2 CH₃OH (g)

(Multiple Choice)

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Question 4

Consider the following reaction at equilibrium: 2CO₂ (g) 2CO (g)+ O₂ (g)ΔH° = -514 kJ Le Châtelier's principle predicts that a decrease in temperature will ________.

(Multiple Choice)

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Question 5

The K_eq for the equilibrium below is 50. H₂ (g)+ I₂ (g) 2HI (g) What is the value of K_eq for the following reaction? H₂ (g)+ I₂(g) HI (g)

(Multiple Choice)

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Question 6

The expression of K_eq for the following reaction will not include ________. A(g)+ B(g) C(l)+ D(g)

(Multiple Choice)

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Question 7

At elevated temperatures,molecular hydrogen and molecular bromine react to partially form hydrogen bromide: H₂ (g)+ Br₂(g) 2HBr (g) A mixture of 0.682 mol of H₂ and 0.440 mol of Br₂ is combined in a reaction vessel with a volume of At equilibrium at 700 K,there are 0.546 mol of H₂ present.At equilibrium,there are ________ mol of Br₂ present in the reaction vessel.

(Multiple Choice)

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Question 8

If the reaction quotient Q for a reaction is equal to the value of the equilibrium constant K for that reaction at a given temperature,then the reaction is at ________.

(Short Answer)

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Question 9

Hydrogen and iodine gas react to produce hydrogen iodide gas.What is the value of for this reaction if at equilibrium the concentrations of , ,and HI were and respectively?

(Multiple Choice)

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Question 10

Carbon monoxide and chlorine gas react to produce COCl₂ gas.The for the reaction is 1.49 × 10⁸ at 100.0 °C: In an equilibrium mixture of the three gases, = = 7.70 × 10^-4 atm.The partial pressure of the product,phosgene ( ),is ________ atm.

(Multiple Choice)

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Question 11

At 200 °C,the equilibrium constant (K_p)for the conversion of NO to oxygen and nitrogen gas is 2.40 × 10³.A closed vessel is charged with 36.1 atm of NO.At equilibrium,the partial pressure of O₂ is ________ atm.

(Multiple Choice)

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Question 12

The K_eq for the equilibrium below is 7.52 × 10^-2 at 480.0 °C. 2Cl₂ (g)+ 2H₂O (g) 4HCl (g)+ O₂ (g) What is the value of K_eq at this temperature for the following reaction? 8HCl (g)+ 2O₂ (g) 4Cl₂ (g)+ 4H₂O (g)

(Multiple Choice)

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Question 13

At 400 K,the equilibrium constant for the reaction Br₂ (g)+ Cl₂ (g) 2BrCl (g) Is K_p = 7.0.A closed vessel at 400 K is charged with 1.00 atm of Br₂(g),1.00 atm of Cl₂ (g),and 2.00 atm of BrCl (g).Use Q to determine which of the statements below is true.

(Multiple Choice)

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Question 14

In which of the following reactions would increasing pressure at constant temperature change the concentrations of reactants and products,based on Le Châteliers principle?

(Multiple Choice)

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Question 15

The equilibrium-constant expression depends on the ________ of the reaction.

(Multiple Choice)

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Question 16

Consider the following reaction at equilibrium: 2S (g)+ C:\Users\User\Dropbox\Quizplus Parsing Documents\To Be Parsed\Not Complete Tables\Chemistry\TB1194,Chemistry The Central Science 14th Edition by Theodore E.Brown\TB1194,Chemistry The Central Science 14th Edition by Theodore E.Brown\Images\C10074 (15)_205.jpg (g) C:\Users\User\Dropbox\Quizplus Parsing Documents\To Be Parsed\Not Complete Tables\Chemistry\TB1194,Chemistry The Central Science 14th Edition by Theodore E.Brown\TB1194,Chemistry The Central Science 14th Edition by Theodore E.Brown\Images\C10074 (15)_206.jpg 2S C:\Users\User\Dropbox\Quizplus Parsing Documents\To Be Parsed\Not Complete Tables\Chemistry\TB1194,Chemistry The Central Science 14th Edition by Theodore E.Brown\TB1194,Chemistry The Central Science 14th Edition by Theodore E.Brown\Images\C10074 (15)_207.jpg (g)ΔH° = -99 kJ Le Châtelier's principle predicts that a(n)increase in temperature will result in ________.

(Multiple Choice)

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Question 17

The equilibrium-constant expression for the reaction Ti (s)+ 2Cl₂(g) TiCl₄(l) Is given by

(Multiple Choice)

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Question 18

If a reaction is endothermic,________ the reaction temperature results in an decrease in K.

(Short Answer)

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Question 19

If Reaction A + Reaction B = Reaction C,then K_c for Reaction C is ________.

(Essay)

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Question 20

Showing 1 - 20 of 97

Exam 15: Chemical Equilibrium

Which of the following expressions is the correct equilibrium-constant expression for the equilibrium between dinitrogen tetroxide and nitrogen dioxide? N2O4 (g) 2NO2 (g)

Which of the following expressions is the correct equilibrium-constant expression for the reaction below? HF (aq)+ H2O (l) H3O+ (aq)+ F- (aq)

The Keq for the equilibrium below is 50. H2 (g)+ I2 (g) 2HI (g) What is the value of Keq for the following reaction? 2HI (g) H2 (g)+ I2 (g)

The value of Keq for the equilibrium CO2 (g)+ 2H2 (g) CH3OH (g) Is 14.5 at 483 °C.What is the value of Keq for the equilibrium below? 1/2 CO2 + H2 (g) 1/2 CH3OH (g)

Consider the following reaction at equilibrium: 2CO2 (g) 2CO (g)+ O2 (g)ΔH° = -514 kJ Le Châtelier's principle predicts that a decrease in temperature will ________.

The Keq for the equilibrium below is 50. H2 (g)+ I2 (g) 2HI (g) What is the value of Keq for the following reaction? H2 (g)+ I2 (g) HI (g)

The expression of Keq for the following reaction will not include ________. A(g)+ B(g) C(l)+ D(g)

If the reaction quotient Q for a reaction is equal to the value of the equilibrium constant K for that reaction at a given temperature,then the reaction is at ________.

Hydrogen and iodine gas react to produce hydrogen iodide gas.What is the value of for this reaction if at equilibrium the concentrations of , ,and HI were and respectively?

Carbon monoxide and chlorine gas react to produce COCl2 gas.The for the reaction is 1.49 × 108 at 100.0 °C: In an equilibrium mixture of the three gases, = = 7.70 × 10-4 atm.The partial pressure of the product,phosgene ( ),is ________ atm.

At 200 °C,the equilibrium constant (Kp)for the conversion of NO to oxygen and nitrogen gas is 2.40 × 103.A closed vessel is charged with 36.1 atm of NO.At equilibrium,the partial pressure of O2 is ________ atm.

The Keq for the equilibrium below is 7.52 × 10-2 at 480.0 °C. 2Cl2 (g)+ 2H2O (g) 4HCl (g)+ O2 (g) What is the value of Keq at this temperature for the following reaction? 8HCl (g)+ 2O2 (g) 4Cl2 (g)+ 4H2O (g)

At 400 K,the equilibrium constant for the reaction Br2 (g)+ Cl2 (g) 2BrCl (g) Is Kp = 7.0.A closed vessel at 400 K is charged with 1.00 atm of Br2 (g),1.00 atm of Cl2 (g),and 2.00 atm of BrCl (g).Use Q to determine which of the statements below is true.

In which of the following reactions would increasing pressure at constant temperature change the concentrations of reactants and products,based on Le Châteliers principle?

The equilibrium-constant expression depends on the ________ of the reaction.

The equilibrium-constant expression for the reaction Ti (s)+ 2Cl2 (g) TiCl4 (l) Is given by

If a reaction is endothermic,________ the reaction temperature results in an decrease in K.

If Reaction A + Reaction B = Reaction C,then Kc for Reaction C is ________.

Introduction: Matter, energy, and Measurement

Atoms, molecules, and Ions

Chemical Reactions and Reaction Stoichiometry

Reactions in Aqueous Solution

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

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Which of the following expressions is the correct equilibrium-constant expression for the equilibrium between dinitrogen tetroxide and nitrogen dioxide? N₂O₄ (g) 2NO₂ (g)

Which of the following expressions is the correct equilibrium-constant expression for the reaction below? HF (aq)+ H₂O (l) H₃O⁺ (aq)+ F^- (aq)

The K_eq for the equilibrium below is 50. H₂ (g)+ I₂ (g) 2HI (g) What is the value of K_eq for the following reaction? 2HI (g) H₂ (g)+ I₂ (g)

The value of K_eq for the equilibrium CO₂ (g)+ 2H₂ (g) CH₃OH (g) Is 14.5 at 483 °C.What is the value of K_eq for the equilibrium below? 1/2 CO₂ + H₂ (g) 1/2 CH₃OH (g)

Consider the following reaction at equilibrium: 2CO₂ (g) 2CO (g)+ O₂ (g)ΔH° = -514 kJ Le Châtelier's principle predicts that a decrease in temperature will ________.

The K_eq for the equilibrium below is 50. H₂ (g)+ I₂ (g) 2HI (g) What is the value of K_eq for the following reaction? H₂ (g)+ I₂(g) HI (g)

The expression of K_eq for the following reaction will not include ________. A(g)+ B(g) C(l)+ D(g)

Carbon monoxide and chlorine gas react to produce COCl₂ gas.The for the reaction is 1.49 × 10⁸ at 100.0 °C: In an equilibrium mixture of the three gases, = = 7.70 × 10^-4 atm.The partial pressure of the product,phosgene ( ),is ________ atm.

At 200 °C,the equilibrium constant (K_p)for the conversion of NO to oxygen and nitrogen gas is 2.40 × 10³.A closed vessel is charged with 36.1 atm of NO.At equilibrium,the partial pressure of O₂ is ________ atm.

The K_eq for the equilibrium below is 7.52 × 10^-2 at 480.0 °C. 2Cl₂ (g)+ 2H₂O (g) 4HCl (g)+ O₂ (g) What is the value of K_eq at this temperature for the following reaction? 8HCl (g)+ 2O₂ (g) 4Cl₂ (g)+ 4H₂O (g)

At 400 K,the equilibrium constant for the reaction Br₂ (g)+ Cl₂ (g) 2BrCl (g) Is K_p = 7.0.A closed vessel at 400 K is charged with 1.00 atm of Br₂(g),1.00 atm of Cl₂ (g),and 2.00 atm of BrCl (g).Use Q to determine which of the statements below is true.

The equilibrium-constant expression for the reaction Ti (s)+ 2Cl₂(g) TiCl₄(l) Is given by

If Reaction A + Reaction B = Reaction C,then K_c for Reaction C is ________.