How Soap perform cleansing action?
Soaps and detergents perform the cleaning action because the polar parts of their molecules are water soluble due to hydrogen-bonding and non-polar parts remain outside water.
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Metallic Solids | Electron Gas Theory
“The solids having metallic bonds in them are called metallic solids.” Electron Gas Theory: The first theory of metallic bonding is called electron pool or electron gas theory. This theory was proposed by Drude and extended by Loren (1932). According to this theory, each atom in a metal crystal loses all of its valence electrons….
How do Hydrogen Bonding Affect Solubility?
In addition to water, ethyl alcohol (C2H5OH) also has the tendency to form hydrogen bonds. So, ethyl alcohol can dissolve in water because both can form hydrogen bonds with each other. Similarly, carboxylic acids are also soluble in water, if their sizes are small. Hydrocarbons being non-polar are not soluble in water at all, and…
Steam produces more severe burns than does the boiling water. Why?
In order to bring about phase change, latent heat is absorbed without any change in temperature. Because heat energy stored in steam is greater than that of boiling water at same temperature. Therefore steam produces more severe burns than does the boiling water.
Plasma Definition Chemistry | 5th State of Matter
Distinct state of matter, containing significant number of electrically charged particles to affect its electrical properties and behavior is called PLASMA. Plasma Formation: When more heat is applied, the atoms or molecules may be ionized. The atom loses one electron and develops a net positive charge. It becomes an ion. When gas is heated…
Define and explain vapour pressure
The pressure above the surface of the liquid by the vapours at equilibrium between liquid and its vapours at a particular temperature is called equilibrium vapour pressure or simply vapour pressure. Explanation: If we enclosed a liquid in a vessel, molecules start to evaporate above the surface of liquid. Such molecules return back to the…
Crystal Structure of Diamond | Properties
Diamond is crystalline (Allotropy) carbon. In the outermost shell of carbon, which is four, the atomic orbitals (1s and 3p) undergo sp3 hybridization to give four sp3 hybridized orbitals which are directed in space along the four corners of a tetrahedron. This is the unit cell of diamond and a large number of such unit…
