The rate of diffusion is dependent upon the permeability of the medium , it however ,

Options

A. influences the final equilibrium of diffusion as it is never reached if the medium is dense
B. does influence the final equilibrium of diffusion
C. does not influence the final equilibrium of diffusion
D. none of the above .

Explanation

### Step-by-Step Text Solution:

1. **Understanding Diffusion**:
- Diffusion is the process of movement of molecules from an area of higher concentration to an area of lower concentration. This continues until the molecules are evenly distributed, achieving equilibrium.

2. **Role of the Medium**:
- The medium through which diffusion occurs plays a crucial role in determining the rate of diffusion. The permeability of the medium affects how easily molecules can move through it.

3. **Effect of Medium Concentration**:
- If the medium is highly concentrated or thick, the permeability decreases. This means that the rate of diffusion will be slower because the molecules face more resistance in moving through the medium.

4. **Rate of Diffusion**:
- While the rate of diffusion may be slow in a concentrated medium, it does not prevent the process from occurring. Molecules will continue to diffuse until they reach equilibrium, regardless of how long it takes.

5. **Final Equilibrium**:
- The key point is that while the rate of diffusion is influenced by the permeability of the medium, it does not affect the final outcome, which is the establishment of equilibrium. Eventually, all molecules will be evenly distributed throughout the medium.

6. **Conclusion**:
- Therefore, the statement can be concluded as: "The rate of diffusion is dependent upon the permeability of the medium; however, it does not influence the final equilibrium of the diffusion."