In ionic bonding, electrons are completely transferred from one atom to another. In the process of either losing or gaining negatively charged electrons, the reacting atoms form ions. The oppositely charged ions are attracted to each other by electrostatic forces, which are the basis of the ionic bond.
Entropy is a measure of the degree of the spreading and sharing of thermal energy within a system. The entropy of a substance increases with its molecular weight and complexity and with temperature. The entropy also increases as the pressure or concentration becomes smaller.
In a process of mixing of ideal materials, the final common volume is the sum of the initial separate compartment volumes.There is no heat transfer and no work is done. The entropy of mixing is entirely accounted for by the diffusive expansion of each material into a final volume not initially accessible to it.hese energy and entropy variables and their temperature dependences provide valuable information about the properties of the materials. On a molecular level, the entropy of mixing is of interest because it is a macroscopic variable that provides information about constitutive molecular properties.