solid liquid coloid example
Answers
Answer:
Dispersion Medium Solid
Explanation:
Sol is a colloidal suspension with solid particles in a liquid. Emulsion is between two liquids. Foam is formed when many gas particles are trapped in a liquid or solid.
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The use of colloids vs crystalloids is still very specifically controversial. A colloid preferred by a physician or basically a plasma expander may work better if colloids are present instead of crystalloids. Many of the colloids might contain albumin which has osmotically equal to plasma and 25% of solutions.
Colloids help in pulling fluid into the bloodstream. Their effects last several days if the lining of the capillaries is found to be normal.
Most of these colloid solutions have the following characteristics.
Thermal kinetic energy helping the mobility
The inertial effect’s absence from fluids
Now or negligible gravitational effects
The type of interactions due to electromagnetic radiation
Closer at home we get to see milk which is considered to be the best example of colloid, the shampoo that we get to use, liquid hand wash we use and moreover, the liquid metal polisher we usually use at home.
Examples of Colloids Chemistry
The properties of colloidal dispersions are closely linked to the high surface area of the dispersed phase and the chemistry of these interfaces. This natural combination of colloid and surface chemistry represent a major research space and we get to see a variety of categories of colloids based on these basic properties.
Examples: fog, smog, and sprays
The dispersed phase for the above examples is liquid and a dispersion medium of gas. These are usually termed as a liquid aerosol.
Examples: smoke and dust in the air
The dispersed phase for the above mentioned examples is solid and the dispersion medium is gas. This is termed as a solid aerosol.
Examples: milk and mayonnaise
The dispersed phase for the above mentioned examples is liquid and the dispersion medium is liquid as well. The term used for these are an emulsion.
Examples: pigmented plastics
The dispersed phase for the above mentioned example is solid and the dispersion medium is solid as well. The term used for such mix is solid suspension.
Examples: silver iodide sol, toothpaste, and Au sol
The dispersed phase for the above mentioned examples is solid and the dispersion medium being liquid. The term used for such colloidal solution paste at high temperature is sol.
The huge difference in surface area of colloids and surface of attachments follows the natural fact that particulate matter has a high surface area to mass ratio. This leads to one of the properties of the surface as a factor for colloidal solutions.
For example, the molecules of organic dye or pollutants can possibly be removed effectively from water by the method of adsorption onto particulate activated charcoal. This is because of the coal’s high surface area. This property and process are widely used for water purification and all kinds of oral treatments.
Molecules in the bulk of liquid can interact via attractive forces with many nearest neighbours than those at the surface. The molecules at the surface must have higher energy than those in bulk as they are partially freed from bonding with neighbouring molecules.
Work must be done to take fully interacting molecules from the bulk of liquid to create any new surface. This gives rise to surface energy or tension of a liquid and hence stronger the molecular force between liquid molecules the greater will be the work done.