Helium-mercury method is used for the measurement of the ________________ of the catalyst?
Correct answer: D. Both B. & C.
- A. Surface area
- B. Porosity
- C. Pore volume
- D. Both B. & C.
Explanation
Helium pycnometry determines the solid or skeletal volume, while mercury intrusion measures pore volume; together they allow catalyst porosity to be determined. Thus both pore volume and porosity are involved.
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