distinguish between dispersion and skewness
Dispersion is the act of spreading people or things (like seeds) out over a large area. Measures of dispersion tell us the degree of variation of values in a sample or population.
Dense smoke from a forest fire - would disperse in the atmosphere. This would be an example of natural dispersion
The Absolute Measure of dispersion is basically the measure of variation from the mean such as standard deviation. On the other hand the relative measure of dispersion is basically the position of a certain variable with reference to or as compared with the other variables. Such as the percentiles or the z-score.
Simply put "a perminent distribution of the substance in the solvent". Colloids don't really form true solutions like sodium chloride does with water. Think of "Milk" as a great example. Water, Fats, and Proteins all get mixed together to make milk. The fats and proteins don't really get broken down, just kind of suspended in the mix.
Three examples of colloids include milk (a colloidal dispersion of fat particles in water), fog (a colloidal dispersion of liquid water droplets in air), and whipped cream (a colloidal dispersion of air bubbles in liquid cream).
solid in a liquid
An emulsion is a colloidal dispersion of two or more immiscible liquids, where one liquid is dispersed in the other in the form of small droplets.
yes!
Tyndall effect
sand and water.
particles suspended in a gas or liquid. When the dispenser is activated, the colloidal dispersion is released as a fine mist or spray. This allows for the efficient distribution of the particles for various applications such as air fresheners, insect repellents, or medications.
One property of skim milk indicating that it is a colloidal dispersion is its opalescent or milky appearance, which is due to the scattering of light by the dispersed fat globules. This indicates that the fat globules are suspended in the liquid without settling out.
It is classified as a colloidal dispersion. Where elements are suspended in another medium and are evenly dispersed through that medium. Homogenization of milk involves mixing milk and milk fat(cream) under high pressure to more evenly disperse milk fat through the milk. It is still a colloidal dispersion. *Note: Addition of some chemicals, colloidal agents, can aid colloids in maintaining a dispersion. Other chemicals known as flocculants aid in the collection of colloidal material into polymer chains which clump together and precipitate out of the fluid.
Smoke is a colloidal dispersion. The medium phase for smoke is the air and the particle phase are solid such as dust.
Sol is a colloidal dispersion where solid particles are suspended in a liquid medium. Gel is a colloidal system where a liquid is dispersed in a solid network forming a semi-solid material. Emulsion is a colloidal dispersion of two immiscible liquids where one liquid is dispersed in the other in the form of droplets.
One of the most important properties of colloidal solutions is that colloidal particles posses a definite type of electrical charge. In a particular colloidal solution, all the colloidal particles carry the same type of charge, while the dispersion medium has an equal but opposite charge. Thus, the charge on colloidal particles is balanced by that of the dispersion medium and the colloidal solution as a whole is electrically neutral.