These forces are electrostatic in nature and are referred to as intermolecular forces. This implies that they are caused by the attraction of negative and positive charges. The negative charge in a molecule is caused by the concentration of electrons in the cloud on one end, and the positive ...
(redirected fromDispersion Forces) Medical Encyclopedia van der Waals force n. A weak, short-range attractive force between atoms or molecules caused by their dipole moments, often arising in otherwise nonpolar atoms or molecules from a temporary shift of orbital electrons to one side of one atom...
These forces are caused by interactions between permanent or temporary dipoles in the molecules. Dispersion forces, on the other hand, are a type of van der Waals force that results from the temporary dipoles that occur due to fluctuations in electron distribution in molecules. In simpler terms...
In this case, the energy of translational motion will be less than in the case when there are no inner degrees of freedom. Since the elasticity of a gas is determined by the energy necessary for translational motion of the molecules, then the elasticity of gas, as well as the speed of ...
Distribution can be affected by time of day, month, or year. The most common form of distributional change occurs among migratory animals, which may be plentiful in the summer months and virtually absent in the winter. The forces governing the dispersal of organisms are eithervectorial (directed...
The forces governing the dispersal of organisms are either vectorial (directed motion), that is, caused by wind, water, or some other environmental motion, or stochastic (random), as in the case of the change in seasons, which gives no indication of where the dispersing organisms may ...
These random motions are caused by different types of forces acting on the nanofluid and nanoparticles dispersed in it. Thus, the thermal dispersion model considers these irregular movements of the nanoparticles along with relative slip between them and the liquid phase and suggests that there are ...
What forces are there in a vacuum? What do you mean by deviation produced by a prism? Why is it caused? State three factors on which angle of deviation depends? What is the polarization? What is polarization? What are modern applications of dispersion by diffraction? What is the meaning of...
The force constants are supplemented by the repulsive forces between non-bonded atoms, which simulate the van der Waals force13 between them. It gives a better description of intra and inter unit interactions, and arbitrariness in choosing the force constants is reduced, thereby enabling us to ar...