What intermolecular forces occur in water, and how are they manifested?
Answers
Answer:
Hydrogen bonding , and dispersion forces............
Explanation:
Dispersion forces (transient polarization of electron clouds) exist between ALL molecules, but it is not the dominant intermolecular force in this instance.
The normal boiling point of HF is 19.5 degree Celsius that of H2O is 100 degree celcius .These values are absurdly HIGH for such small molecules, and points to a special type of intermolecular interaction, that of hydrogen bonding, which occurs when hydrogen is bound to a strongly electronegative element, such as fluorine or oxygen. Hydrogen bonding thus decreases the volatility of each material.
The heteroatom strongly polarizes electron density towards itself to give a dipole that we could represent as − δ O H 2δ + OR − δ F − H δ + . In the condensed phase the dipoles line up appropriately, and this phenomenon is described as
hydrogen bonding. Ammonia, N H 3 , also exhibits some degree of hydrogen bonding. It is the dominant intermolecular force.
