Freundlich adsorption isotherm is given by the expression `(x)/(m)=kp^((1)/(n))` Which of the following conclusions can be drawn from this expression?

Options

A. When `(1)/(n)=0`, the adsorption is independent of pressure
B. When `(1)/(n)=0`, the adsorption is directly proportional to pressure
C. When `n=0,(x)/(m)` vs p graph is a line parallel to x-axis
D. When `n=0`, plot of `(x)/(m)` vs p is a curve

Answer

A, C

Explanation

According to Freundlich adsorption isotherm
`(x)/(m) prop p^((1)/(n))implies(x)/(m)=kp^((1)/(n))`
(a) At `(1)/(n)=0` this equation becomes `(x)/(m)=kp^(@)=k`
Extent of adsorption is independent of pressure.
(c) At `x=0, " " (x)/(m)=kp^((1)/(0))=kp^(oo)`
Hence, `(x)/(m)` vs p graph can be plotted as