what is the meaning of the line "the dipole dipole interaction for stationary molecule is given by 1/r3 and the dipole-dipole interaction between rotational molecule is given by 1/r6"
what does "stationary molecule" and "rotational molecule" here refer to?
what is the meaning of the line "the dipole dipole interaction for stationary molecule is given by 1/r3 and the dipole-dipole interaction between rotational molecule is given by 1/r6"
what does "stationary molecule" and "rotational molecule" here refer to?
We know that polar molecules are the molecules which possess a dipole (a dipole is a system of equal and opposite charges separated by a small distance). Now dipole-dipole interaction is the main operating force between the polar molecules. This interaction between two stationary molecules is proportional to 1/r3, where 'r' is the distance between two polar molecules. Therefore as distance between to stationary polar molecules decreases, the dipole-dipole interaction between them increases. A stationary polar molecule is a molecule which does not exhibit any motion - translatory, vibratory or rotatory motion. It is fixed. These type of molecules are more likely to be found in solids, where motion of constituent molecules is restricted.
For rotating polar molecules, the dipole-dipole interaction is proportional to 1/r6. This means that the dipole dipole interaction between two rotating polar molecules shows more variation with distance than non-polar molecules. A rotating polar molecule is a molecule is a polar molecule which is not stationary and rotates about a given axis. Thus this molecule exhibits rotatory motion about a particular axis. These molecules are more likely to be found in liquids and in gases as in both of them, the motion of the constituent molecules is not restricted (like in solids).
We know that polar molecules are the molecules which possess a dipole (a dipole is a system of equal and opposite charges separated by a small distance). Now dipole-dipole interaction is the main operating force between the polar molecules. This interaction between two stationary molecules is proportional to 1/r3, where 'r' is the distance between two polar molecules. Therefore as distance between to stationary polar molecules decreases, the dipole-dipole interaction between them increases. A stationary polar molecule is a molecule which does not exhibit any motion - translatory, vibratory or rotatory motion. It is fixed. These type of molecules are more likely to be found in solids, where motion of constituent molecules is restricted.
For rotating polar molecules, the dipole-dipole interaction is proportional to 1/r6. This means that the dipole dipole interaction between two rotating polar molecules shows more variation with distance than non-polar molecules. A rotating polar molecule is a molecule is a polar molecule which is not stationary and rotates about a given axis. Thus this molecule exhibits rotatory motion about a particular axis. These molecules are more likely to be found in liquids and in gases as in both of them, the motion of the constituent molecules is not restricted (like in solids).
