Related Experiment Video
Updated: Nov 25, 2025
The Preparation of Electrohydrodynamic Bridges from Polar Dielectric Liquids
Published on: September 30, 2014
Quadrupolarizability of Liquid Mixtures
Iglika M Dimitrova1,2, Velislava I Yordanova1, Radomir I Slavchov3
1Department of Physical Chemistry, University of Chemical Technology and Metallurgy, 8 Kliment Ohridski Boulevard, BG-1756 Sofia, Bulgaria.
Abstract:
Theoretical expressions for the macroscopic polarizability and quadrupolarizability of a quadrupolar mixture are derived. The theory is demonstrated on the example of a liquid mixture of methane and nitrogen (nonquadrupolar plus quadrupolar component). It turns out that the dielectric permittivity (the "dipole strength" of the liquid) of this mixture changes little with the composition, while the quadrupolar length ("quadrupolar strength") almost triples as the fraction of nitrogen approaches one. A set of such mixtures can be used as standard quadrupolar solvents to study systematically phenomena such as quadrupolar solvatochromism, the effect of the solvent on the rate of a reaction etc.
Related Concept Videos
02:56Intermolecular Forces and Physical Properties
02:34Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility
Temporary attractive forces like dispersion are present in all molecules, whether they are polar or nonpolar. They...
02:48Bond Polarity, Dipole Moment, and Percent Ionic Character
03:37Molecular Shape and Polarity
02:36Molecular Geometry and Dipole Moments
03:08Electrolytes: van't Hoff Factor
The colligative properties of a solution depend only on the number, not on the identity, of solute species dissolved. The concentration terms in the equations for various colligative properties (freezing point depression, boiling point elevation, osmotic pressure) pertain to all solute species present in the solution. Nonelectrolytes dissolve physically without dissociation or any other accompanying process. Each molecule that dissolves yields one...