Adsorption Isobars
These are plots of x / m us temperature t at constant pressure . For physical and chemical adsorption , they are shown below .
Adsorption Isostere
These are the plot of temperature versus pressure for a given amount of adsorption
Applications of Adsorption
1 . For production of high vacuum .
2 . Gas masks containing activated charcoal is used for breathing in coalmines . They adsorb poisonous gases .
3 . Silica and aluminium gels are used as adsorbents for controlling humidity .
4 . Removal of colouring matter from solutions . 5 . It is used in heterogeneous catalysis .
6 . In separation of inert gas . 7 . As adsorption indicators .