"Adsorption is the process where particles are attracted to the surface of another material."
"The adsorbate binds directly to the adsorbent surface."
"Particle size of the adsorbent will not affect the amount of adsorption."
"Adsorption can be physical or chemical."
Show Solution
The Correct Option isC
Solution and Explanation
The correct statement is: "Adsorbent particle size influences the quantity of adsorption."
Explanation:
False Premise: The assertion that "adsorbent particle size does not impact the amount of adsorption" is incorrect. In reality, particle size is a critical determinant of adsorption.
Particle Size Impact: Smaller adsorbent particles possess a greater surface area. This increased surface area offers more adsorption sites, thereby enhancing the adsorption capacity. Consequently, reducing particle size amplifies the adsorption amount.
Surface Area and Adsorption Correlation: Adsorption is inherently a surface-dependent process. A larger surface area on the adsorbent facilitates more adsorption. Particles with smaller dimensions exhibit a higher surface area-to-volume ratio, boosting their adsorption efficacy.
Additional Influencing Factors:
Adsorbent Properties: The chemical characteristics of the adsorbent, such as its polarity and surface charge, also play a role in adsorption effectiveness.
Temperature: Temperature effects vary; physical adsorption typically diminishes with increasing temperature, while chemisorption may increase.
Adsorbate Concentration: Higher adsorbate concentrations generally lead to greater adsorption, up to the point of saturation.
Thus, adsorbent particle size does affect the adsorption amount, invalidating the initial statement.