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Define adsorption and write two importan...

Define adsorption and write two important differences between physical adsorption and chemisorption.

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Knowledge Check

  • In physical adsorption

    A
    the extent of adsorption increases with increase in surface area.
    B
    enthalpy of adsorption is 20-40 kJ `"mol"^(-1)`
    C
    the process is irreversible.
    D
    all the above.

  • Physical adsorption is

    A
    highly specific
    B
    irreversible
    C
    not specific
    D
    considerable at high temperature

  • Physical adsorption is :

    A
    highly specific
    B
    reversible
    C
    irreversible
    D
    monolayer