In freundlich adsorption isotherm, the value of 1/n is :

Options

A. between 0 and 1 in all cases
B. between 2 and 4 in all cases.
C. l in case of physical adsorption.
D. 1 in case of chemisorption.

Answer

A

Explanation

According to Freundlich Adsorption isotherm
`(x)/(m)=KP^(1)/(n)`
at low pressure`(1)/(n)=1`
`:.(x)/(m)propP^(1)`
at high pressure` = (1)/(n)=0`
`(x)/(m)propP^(@)`
i.e. the value of n varies between 0 to 1 9.