Question

For an adsorbant-adsorbate system obeying the Langmuir adsorption isotherm, b = 0.48 bar^-1 and p = 0.16 bar^-1. At what pressure will 50% of the surface be covered?

(a) 0.05 bar

(b) 0.07 bar

(c) 0.08 bar

(d) 0.04 bar

The question was posed to me in semester exam.

The query is from Adsorption topic in division Unit Operations of Bioprocess Engineering

Answer 1

Correct option is (b) 0.07 bar

The explanation is: Given data

b = 0.48 bar^-1

p = 0.16 bar^-1

Substitute in the corresponding equation