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: The following equilibria are known at 823 K: Zn (s) + H2O (g) ⇌ ZnO (s) + H2 (g) Kc = 0.015   Zn (s) + CO2 (g) ⇌ ZnO (s) + CO (g) Kc = 0.0020   Based on the above equilibria, calculate the Kc of the following reaction: CO (g) + H2O (g) ⇌ H2 (g) + CO2 (g) Kc = ? A. 7.5 B. 0.13 C. 3.0x10−5 D. 0.013

Problem

The following equilibria are known at 823 K:

Zn (s) + H2O (g) ⇌ ZnO (s) + H2 (g) Kc = 0.015

 

Zn (s) + CO2 (g) ⇌ ZnO (s) + CO (g) Kc = 0.0020

 

Based on the above equilibria, calculate the Kc of the following reaction:

CO (g) + H2O (g) ⇌ H2 (g) + CO2 (g) Kc = ?

A. 7.5

B. 0.13

C. 3.0x10−5

D. 0.013