Question

Which of the following represent the Freundlich adsorption isotherms?




Choose the correct answer from the options given below: 

• A. A, B only
• B. B, C, D only
• C. A, B, D only
• D. A, C, D only

Answer 1

The Correct Option is C

The Freundlich adsorption isotherm is an empirical relationship that describes the adsorption of gases or solutes onto a surface. It is represented by: \[ \frac{x}{m} = k p^{1/n} \] where $x$ is the mass of the adsorbate, $m$ is the mass of the adsorbent, $p$ is the pressure, and $k$ and $n$ are constants. The graphical representations are: 

A: Correct, shows $\frac{x}{m}$ vs $p$ with a logarithmic relationship.

B: Correct, shows $\log \frac{x}{m}$ vs $\log p$ as a straight line.

D: Correct, shows a logarithmic relationship $\frac{x}{m}$ vs $p^{1/n}$.

C: Incorrect, as it shows a constant $\frac{x}{m}$, not related to Freundlich's isotherm. \end{itemize}

Thus, the correct representations are A, B, and D.