Question

A graph drawn between 'log and log p on 'X' and Y' axis respectively could be a
regarding physical adsorption
mn
(A) Hyperbola
(B) Parabola
(C) Straight line with positive slope
(D) Straight line with negative slope​

Answer 1

A graph drawn between 'log and log p on 'X' and Y' axis respectively could be a regarding physical adsorption mn (C) Straight line with positive slope.

Explanation:

1.Freundlich Adsorption isotherm is the variation of the mass of the gas (adsorbate) adsorbed per gram of the adsorbent with pressure at constant temperature.

2.The Freundlich adsorption isotherm is the mathematical representation for the variation of the extent of adsorption (x/m) with pressure (P) at a given temperature.

                                       $\frac{x}{m}$=k$p^{1/n}$

3.where n>1 and  x is the mass of the gas adsorbed, m is the mass of the adsorbent, P is the pressure and n is a constant which depends upon the nature of adsorbent and the gas at a given temperature. Taking the logarithm on both the sides of the equation, we get,

                                               $log\frac{x}{m}$=$logk+\frac{1}{n}logp$

4.The plot of this equation is a straight line as represented by the following curve.