Question

Classify the following diameters into the corresponding categories:

• A. Micropore
• B. Mesopore
• C. Macropore
• D. All of the above

Hint:

Understanding the classification of pore sizes is important for applications in filtration, catalysis, and materials science. Micropores, mesopores, and macropores all play a role in determining the physical properties of materials.

Answer 1

The Correct Option is D

The classification of pores based on diameter is as follows: Micropore: Pores with a diameter less than 2 nm. These are very fine pores that are found in materials like zeolites and activated carbon. Mesopore: Pores with diameters between 2 nm and 50 nm. These pores are often found in materials like silica and alumina, and they are typically larger than micropores but smaller than macropores. Macropore: Pores with a diameter greater than 50 nm. These are large pores found in materials like large activated carbon particles, and they allow for the rapid passage of fluids. Thus, all the categories of pores are correctly classified by their respective diameters.