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Solution - What Do You Understand by Activation of Adsorbent? How is It Achieved? - CBSE (Science) Class 12 - Chemistry

Question

What do you understand by activation of adsorbent? How is it achieved?

Solution 1

By activating an adsorbent, we tend to increase the adsorbing power of the adsorbent. Some ways to activate an adsorbent are:

(i) By increasing the surface area of the adsorbent. This can be done by breaking it into smaller pieces or powdering it.

(ii) Some specific treatments can also lead to the activation of the adsorbent. For example, wood charcoal is activated by heating it between 650 K and 1330 K in vacuum or air. It expels all the gases absorbed or adsorbed and thus, creates a space for adsorption of gases.

Solution 2

Activation of an adsorbent means increasing it’s adsorbing power by increasing the surface area of the adsorbent by making it’s surface rough, by removing already adsorbed gases from it and by subdividing the adsorbent into smaller pieces or grains.

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APPEARS IN

 NCERT Chemistry Textbook for Class 12 Part 1 (with solutions)
Chapter 5: Surface Chemistry
Q: 6 | Page no. 146

Video TutorialsVIEW ALL [1]

Reference Material

Solution for question: What Do You Understand by Activation of Adsorbent? How is It Achieved? concept: null - Adsorption Isotherms. For the courses CBSE (Science), CBSE (Arts), PUC Karnataka Science, CBSE (Commerce)
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