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Which one of the following is incorrect for chemisorption?
  • a)
    Heat of adsorption is negative
  • b)
    It takes place at high temperature
  • c)
    It is reversible
  • d)
    It is highly specific in nature.
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Which one of the following is incorrect for chemisorption?a)Heat of ad...
Following are the characteristics of chemical adsorption or chemisorption:
  1. The process of adsorption is exothermic, i.e., heat will be released during the adsorption and thus the heat of adsorption is negative.
  2. The process is very slow at low temperatures on account of high energy of activation. Like most chemical changes, adsorption often increases with the rise of temperature. Physisorption of a gas adsorbed at low temperature may change into chemisorption at a high temperature.
  3. Chemisorption is highly specific and it will only occur if there is some possibility of chemical bonding between adsorbent and adsorbate.
  4. As chemisorption involves compound formation, it is usually irreversible in nature.
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Which one of the following is incorrect for chemisorption?a)Heat of adsorption is negativeb)It takes place at high temperaturec)It is reversibled)It is highly specific in nature.Correct answer is option 'C'. Can you explain this answer?
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