Question

Explain‌ ‌the‌ ‌dipole-dipole‌ ‌interaction‌ ‌energy‌ ‌between‌ ‌stationary‌ ‌polar‌ ‌molecules.‌

Answer 1

When two dipolar molecules interact with each other in space, dipole-dipole interactions occur. When this happens, one of the polar molecules' partially negative portion attracts the partially positive portion of the other polar molecule. Many physically and biologically important phenomena, such as the elevated boiling point of water, are explained by this form of molecule interaction.

Complete answer:
When two dipolar molecules interact with each other in space, dipole-dipole interactions occur. When this happens, one of the polar molecules' partially negative portion attracts the partially positive portion of the other polar molecule. Many physically and biologically important phenomena, such as the elevated boiling point of water, are explained by this form of molecule interaction.
The energy of dipole-dipole interaction between stationary polar molecules is proportional to $\dfrac{1}{{{r^3}}}$, whereas it is proportional to $\dfrac{1}{{{r^6}}}$ between rotating polar molecules.
the distance between polar molecules is denoted by the letter ‘r.'
The attractive force reduces as the distance between the dipoles increases.
The interaction energy between polar molecules is inversely proportional to the distance between them.
When partial charges produced within one molecule are drawn to an opposite partial charge in a surrounding molecule, dipole-dipole interactions occur.
Polar molecules such as hydrogen chloride (HCl), carboxylic acids (i.e., acetic acid), and amino acids may have dipole-dipole interactions.

Note:
When two dipolar molecules interact with each other in space, dipole-dipole interactions occur. When this happens, one of the polar molecules' partially negative portion attracts the partially positive portion of the other polar molecule. Many physically and biologically important phenomena, such as the elevated boiling point of water, are explained by this form of molecule interaction.