Ch.14 - Chemical EquilibriumWorksheetSee all chapters
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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

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

Solution: Consider this reaction.P4 (s) + 6 Cl2 (g) ⇌ 4 PCl3 (g)What is the correct Kc expression for this reaction?  

Solution: Consider this reaction.P4 (s) + 6 Cl2 (g) ⇌ 4 PCl3 (g)What is the correct Kc expression for this reaction?  

Problem

Consider this reaction.

P4 (s) + 6 Cl2 (g) ⇌ 4 PCl3 (g)

What is the correct Kc expression for this reaction?

 

 

Solution

Kc is the equilibrium expression of the concentrations in the reaction. The general form of an equilibrium expression is:

Given reaction:

P4(s)  +  6 Cl2(g)  ⇌  4 PCl3(g)
       (reactants)                  (products)


When writing equilibrium expressions:

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