Question

In Langmuir’s model of adsorption of a gas on a solid surface, the rate of dissociation of adsorbed molecules from the surface does not depend on?

• A. The surface covered
• B. The adsorption at a single site on the surface
• C. The mass of gas striking a given area of surface
• D. The pressure of the gas

Hint:

In Langmuir’s adsorption model, adsorption rate is governed by surface area and molecular interaction, not pressure.

Answer 1

The Correct Option is D

Langmuir’s model suggests that adsorption depends on the surface covered, the amount of gas, and the adsorption at a single site. However, it does not depend on the pressure of the gas directly.