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Chemisorption involves formation of bond between gaseous molecules or atoms and the solid surface for which high energy is required. Thus it is also referred as
  • a)
    Chemical adsorption
  • b)
    Positive adsorption
  • c)
    Activated adsorption
  • d)
    Passive adsorption
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Chemisorption involves formation of bond between gaseous molecules or ...
Chemisorption is also referred as activated adsorption since it induces high activation energy.
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Most Upvoted Answer
Chemisorption involves formation of bond between gaseous molecules or ...
Chemisorption, also known as chemical adsorption or activated adsorption, is a process in which a chemical bond is formed between gaseous molecules or atoms and the surface of a solid. This process requires a significant amount of energy, making it distinct from physisorption, where weak van der Waals forces are involved.

Explanation:

1. Chemisorption and the formation of chemical bonds:
- Chemisorption is characterized by the formation of chemical bonds between the adsorbate (gaseous molecules or atoms) and the adsorbent (solid surface).
- This bond formation is a result of the interaction between the electrons in the adsorbate and the surface atoms or ions of the adsorbent.
- The chemical bonds can be covalent or ionic in nature, depending on the nature of the adsorbate and the surface.

2. Energy requirement in chemisorption:
- Chemisorption requires a relatively high amount of energy compared to physisorption.
- This energy is needed to overcome the activation energy barrier associated with the formation of chemical bonds.
- The activation energy barrier arises from the need to break existing bonds in the adsorbate and the adsorbent to allow the formation of new bonds.
- The energy required for chemisorption is typically several orders of magnitude higher than the thermal energy available at room temperature.

3. Terms used to describe chemisorption:
- Chemisorption is often referred to as chemical adsorption because it involves the formation of chemical bonds.
- It is also called activated adsorption because the process requires activation energy to overcome the energy barrier for bond formation.
- The term "positive adsorption" is not commonly used to describe chemisorption and is not an accurate description of the process.

In conclusion, chemisorption is a process in which chemical bonds are formed between gaseous molecules or atoms and the surface of a solid. This process requires a significant amount of energy and is often referred to as chemical adsorption or activated adsorption.
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Chemisorption involves formation of bond between gaseous molecules or atoms and the solid surface for which high energy is required. Thus it is also referred asa)Chemical adsorptionb)Positive adsorptionc)Activated adsorptiond)Passive adsorptionCorrect answer is option 'C'. Can you explain this answer?
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