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Why does physisorption decrease with the...

Why does physisorption decrease with the increase of temperature ?

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`underset("(Adsorbate) Adsorbent")("Gas"+"Solid"overset("Adsorption")underset("Desorption")hArr)"Gas/solid"+"Heat"`
Physisorption is an exothermic process therefore it is favoured at low temperature with increase in temperature desorption takes place.
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Knowledge Check

  • Rate of physisorption increases with

    A
    Decrease in temperature
    B
    Increase in temperature
    C
    Decrease in pressure
    D
    Decrease in surface area

  • Rate of physisorption increases with

    A
    Incresaes in T
    B
    Decreases in P
    C
    Decreases in T
    D
    Decrease in surface area

  • Assertion : Molarity of a solution decreases with an increase of temperature Reason : As temperature increases volume of the solution increases.

    A
    Both Assertion and Reason are true and Reason is the correct explanation of Assertion
    B
    Both Assertion and Reason are true and Reason is not the correct explanation of Assertion
    C
    Assertion is true but Reason is false
    D
    Both Assertion and Reason are false

    • Similar Questions

    Explore conceptually related problems

    (A): Molarity of a solution decreses with an increase of temperature (R): As temperature increases volume of the solution increases.

    (A): The resistivity of metals increases with increase in temperature (R): The average time of collision of electrons with the ion of lattice decreases with increase in temperature.

    The rate of physisorption

    (A) Rate of constant of a reaction increases with increase in temperature (R ) Increase in temperature increases in the number of activated molecules

    (A) Rate of reaction increases with increase in temperature. (R ) Number of collisions increases with increase in temperature.

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