APPLICATIONS OF HYDROGEN BONDING

 APPLICATIONS OF HYDROGEN BONDING:

•Thermodynamic properties:

Hydrides of group 4 have lower points than that of group 5,6 and 7 because these hydrides are non polar and have only London dispersion forces among their molecules while group 5A,6A,and 7A have polar molecules which have dipole dipole forces.

•Solubility of hydrogen bonded molecules:

The compounds that have hydrogen bonds are soluble in each other. Ethyl alcohol and low mass carboxylic Acids can dissolve in water because of hydrogen bonds. Oil is insoluble because of no attraction.

• Cleansing action:

Soaps and detergents perform the cleansing action. Their polar parts are water soluble due to hydrogen bonding and non polar part dissolve oil or grease. Attraction between water and polar end of soap molecule carries the oil or grease droplet into the water.

• Hydrogen bonding in paints and dyes:

Paints and dyes have adhesive action due to hydrogen bonding. Similarly hydrogen bonding also makes glue and honey sticky substances.

• Clothing:

The rigidity and tensile strength of the cotton, silk and synthetic fibres are due to hydrogen bonding. Hydrogen bonding is of great importance in thread making materials.

• Food materials:

Food materials like carbohydrates consists of glucose, fructose, sucrose, each of them contains -OH groups which are responsible for hydrogen bonding in them.