Question

Under what condition, will $x/m$ value be equal to pressure of the gas on the surface of the absorbent?

• A. At low pressure
• B. At high pressure
• C. At low temperature
• D. At high temperature

Answer 1

Answer: (A)

At low pressure

Answer 2

According to Freundlich adsorption isotherm
$\frac{x}{m}=k \, p^{1/n}$
where $\frac{x}{m}$ = Extent of adsorption, $p$ = Pressure
At low pressure, $\frac{x}{m} \propto P$ or $\frac{x}{m}=k\,p$