molecular arrangement attraction molecules and distance between molecules

We have learnt that the electrons in bonding molecular orbitals contribute to attraction between the atoms and thereby help in the formation of bond. On the other hand the electrons in antibonding molecular orbitals contribute to repulsion between the atoms and, there..

A number of electrolytes dissociate in solution to give two or more particles (ions). Therefore, the number of solute particles, in solution of such substances is more than the expected value. Accordingly, such solutions exhibit higher values of colligative properties. Since the colligative propert..

Molecularity - Elementary reactions are classified according to their molecularity. The number of reacting species, which are involved in simultaneous collision to bring about a chemical reaction is called the molecularity of the reaction. In a unimolecular reaction, a..

Molecular substance having nearly spherical molecules have closed packed arrangements. Examples: Solid H 2 has hcp structure, while solid CH 4 , HCl, H 2 S have ccp structu..

In molecular solids, the constituents units are molecules, which do not carry any charge. The attractive forces binding the molecules together are of two typ..

It is suggested that the large organic molecules formed abiotically in the primitive earth came together spontaneously and due to intermolecular attraction, formed large colloidal aggregates called Coacervates . An envelope of water molecules formed around each such ag..

To Determine Molecular Size - A solution of known concentration of oleic acid in alcohol is prepared. Let 1 cm 3 of oleic acid be dissolved in 500 cm 3 of alcohol to get concentration. Let n drops of this solution be poured on a water surface contained in a flat and broad vessel. Oleic ac..

Origin of Surface Tension (Molecular Theory)..

Every molecule in a gas is in a state of constant straight-line motion. Molecules very frequently collide with one another, and against the sides of the container (Fig. 15.4). It is assumed that the molecules do not lose energy during these collisions. Hence the sum to..

The molecules in a solid are very closely packed. The inter-molecular force of attraction is very strong in solids. Hence solids have a definite size and shape. Molecules of a solid vibrate about their mean position. Molecular structure of a so..