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: Phosphorus pentachloride decomposes according to the chemical equation PCl5 (g) ⇌ PCl3 (g) + Cl2(g)                 K c = 1.80 at 250 °C.A 0.162 mol sample of PCl5 (g) is injected into an empty 2.10 L

Problem

Phosphorus pentachloride decomposes according to the chemical equation 

PCl5 (g) ⇌ PCl3 (g) + Cl2(g)                 K c = 1.80 at 250 °C.

A 0.162 mol sample of PCl5 (g) is injected into an empty 2.10 L reaction vessel held at 250 °C. Calculate the concentrations of PCl5 (g) and PCl3 (g) at equilibrium.