Ch.14 - Chemical EquilibriumWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Which of the following represents a heterogeneous equilibrium? N2O4 (g) ⇌  2 NO2 (g) CH3COOH (aq)  +  H2O (l)  ⇌ CH3COO­­­­- (aq)  +  H3O+ (aq) CaCO3 (s) ⇌ CaO (s) +  CO2 (g) NH3 (aq)  +  H2O (l)  ⇌ NH4+ (aq) +  OH­­­­- (aq) None of the above.   

Problem

Which of the following represents a heterogeneous equilibrium?

  1. N2O4 (g) ⇌  2 NO2 (g)
  2. CH3COOH (aq)  +  H2O (l)  ⇌ CH3COO­­­­- (aq)  +  H3O+ (aq)
  3. CaCO3 (s) ⇌ CaO (s) +  CO2 (g)
  4. NH3 (aq)  +  H2O (l)  ⇌ NH4+ (aq) +  OH­­­­- (aq)
  5. None of the above.