Ch.11 - Liquids, Solids & Intermolecular ForcesWorksheetSee 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: Two isomers of the planar compound 1,2-dichloroethylene are shown here, along with their melting and boiling points. Which of the two isomers will have the stronger dipole-dipole forces?

Problem

Two isomers of the planar compound 1,2-dichloroethylene are shown here, along with their melting and boiling points.Cis isomer: C is double bonded to C. The C on the left is single bonded left angled up to H and left angled down to Cl. The C on the right is single bonded right angled up to H and right angled down to Cl. Trans isomer: C is double bonded to C. The C on the left is single bonded left angled up to Cl and left angled down to H. The C on the right is single bonded right angled up to H and right angled down to Cl.

Which of the two isomers will have the stronger dipole-dipole forces?