According to Freundlich adsorption isotherm, x∕m=kp
1
n
where, x = mass of gas adsorbed on mass ‘m’ of the absorbent at pressure p. k and n = constants. Taking logarithm on both sides, we getlog‌x∕m=log‌k+
1
n
‌log‌p This is equation of a straight line with slope of