Question

According to Langmuir adsorption isotherm, the amount of gas adsorbed by the unit surface area is :

[a, b, k and n are constants: P = pressure of gas]

• A. $k.P^n$
• B. $\frac{1+bP}{aP}$
• C. $k.P^{1/n}$
• D. $\frac{aP}{1+bP}$

Answer 1

The correct option is D $\frac{aP}{1+bP}$

According to Langmuir adsorption isotherm, the amount of gas adsorbed by unit surface area is
$\frac{x}{m}=\frac{aP}{1+bP}$