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Adsorption Isotherms Video Lecture | Chemistry Class 12 - NEET

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FAQs on Adsorption Isotherms Video Lecture - Chemistry Class 12 - NEET

1. What is adsorption isotherm?
Ans. Adsorption isotherm refers to the relationship between the adsorbate's concentration in the gas or liquid phase and the amount of adsorbate adsorbed onto the surface of the adsorbent at a constant temperature.
2. What are the different types of adsorption isotherms?
Ans. The different types of adsorption isotherms include Langmuir isotherm, Freundlich isotherm, BET (Brunauer-Emmett-Teller) isotherm, and Temkin isotherm.
3. How does the Langmuir isotherm describe adsorption?
Ans. The Langmuir isotherm describes adsorption as a monolayer adsorption process, where adsorbate molecules adsorb onto a limited number of specific sites on the adsorbent's surface. It assumes that there is no interaction between the adsorbed molecules.
4. What is the Freundlich isotherm used for?
Ans. The Freundlich isotherm is used to describe multilayer adsorption processes. It assumes that the adsorption occurs on a heterogeneous surface with different adsorption energies and that there is interaction between the adsorbed molecules.
5. How is the BET isotherm different from Langmuir and Freundlich isotherms?
Ans. The BET isotherm is different from Langmuir and Freundlich isotherms as it considers the formation of multiple layers of adsorbate on the surface of the adsorbent. It takes into account the interaction between the adsorbed molecules and assumes that there is a specific heat of adsorption for each layer.
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