Ch.14 - Chemical EquilibriumSee 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

Equilibrium Expressions

See all sections
Sections
Chemical Equilibrium
ICE Chart
Le Chatelier's Principle
The Reaction Quotient
Additional Practice
Equilibrium Expressions

Solution: For the reaction 2 SO3 (g) ⇌ 2 SO2 (g) + O2 (g), which of the following is the correct equilibrium expression for Kc?A. Kc = [SO3]2 / [SO2]2 [O2]B. Kc = [SO2]2 [O2] / [SO3]2C.Kc = 2 [SO2] [O2] / 2 [SO3]D. Kc = 2 [SO3] / 2 [SO2] [O2]

Problem

For the reaction 2 SO3 (g) ⇌ 2 SO2 (g) + O2 (g), which of the following is the correct equilibrium expression for Kc?

A. Kc = [SO3]2 / [SO2]2 [O2]

B. Kc = [SO2]2 [O2] / [SO3]2

C.Kc = 2 [SO2] [O2] / 2 [SO3]

D. K= 2 [SO3] / 2 [SO2] [O2]