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- Q245031 subject Q6563910.
- Q245031 subject Q7434136.
- Q245031 abstract "Intermolecular forces are forces of attraction or repulsion which act between neighboring particles (atoms, molecules, or ions). They are weak compared to the intramolecular forces, the forces which keep a molecule together. For example the covalent bond, involving the sharing of electron pairs between atoms is much stronger than the forces present between the neighboring molecules. They are an essential part of force fields frequently used in molecular mechanics.The investigation of intermolecular forces starts from macroscopic observations which point out the existence and action of forces at a molecular level. These observations include non-ideal-gas thermodynamic behavior reflected by virial coefficients, vapor pressure, viscosity, superficial tension and absorption data.The first reference to the nature of microscopic forces is found in Alexis Klairaut's work Theorie de la Figure de la Terre. Other scientists who have contributed to the investigation of microscopic forces include: Laplace, Gauss, Maxwell and Boltzmann.Attractive intermolecular forces are considered by the following types:Ion-induced dipole forcesIon-dipole forcesvan der Waals forces (Keesom force, Debye force, and London dispersion force)Information on intermolecular force is obtained by macroscopic measurements of properties like viscosity, PVT data. The link to microscopic aspects is given by virial coefficients and Lennard-Jones potentials.".
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- Q245031 type Thing.
- Q245031 comment "Intermolecular forces are forces of attraction or repulsion which act between neighboring particles (atoms, molecules, or ions). They are weak compared to the intramolecular forces, the forces which keep a molecule together. For example the covalent bond, involving the sharing of electron pairs between atoms is much stronger than the forces present between the neighboring molecules.".
- Q245031 label "Intermolecular force".
- Q245031 depiction Dipole-dipole-interaction-in-HCl-2D.png.