Home
Class 12
CHEMISTRY
Why does physisorption decrease with the...

Why does physisorption decrease with the increase of temperature ?

Text Solution

Verified by Experts

`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.
Promotional Banner

Topper's Solved these Questions

  • SURFACE CHEMISTRY

    AAKASH SERIES|Exercise SUBJECTIVE EXERCISE - 1 (SHORT ANSWER QUESTIONS)|5 Videos

  • SURFACE CHEMISTRY

    AAKASH SERIES|Exercise SUBJECTIVE EXERCISE - 1 (VERY SHORT ANSWER QUESTIONS)|8 Videos

  • SURFACE CHEMISTRY

    AAKASH SERIES|Exercise EXERCISE - 5.2|35 Videos

  • STOICHIOMETRY

    AAKASH SERIES|Exercise PRACTICE SHEET (ADVANCED) (INTEGER TYPE QUESTION)|2 Videos

  • VA GROUP ELEMENTS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|51 Videos

Similar Questions

Explore conceptually related problems

Rate of physisorption increases with

Assertion : Molarity of a solution decreases with an increase of temperature Reason : 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.

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

Why does the velocity of gas molecules increase with increase in temperature ?

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

AAKASH SERIES-SURFACE CHEMISTRY-PROBLEMS
  1. Why does physisorption decrease with the increase of temperature ?

    Text Solution

    |

  2. Critical temperature of SO2, N2, NH3 and CH4 are 430 K, 126K, 406 K an...

    Text Solution

    |

  3. Per two gram of charcoal, a gas is adsorbed by 0.1g and 0.2g at 10 tor...

    Text Solution

    |

  4. In Langmuir adsorption isotherm, what is the slope and Y-intercept?

    Text Solution

    |

  5. The curve showing variation of x/m with temperature is inverted 'V' sh...

    Text Solution

    |

  6. Why is ester hydrolysis slow iin the beginning but is fast after somet...

    Text Solution

    |

  7. What role does adsorption play in heterogenous catalysis ?

    Text Solution

    |

  8. Why is it necessary to remove CO when ammonia is obtained by Haber's p...

    Text Solution

    |

  9. How to save a patient suffering from kidney failure?

    Text Solution

    |

  10. Is it possible to know the size and shape of colloidal particles by us...

    Text Solution

    |

  11. Gold numbers of four protective colloids A, B, C and Dare 0.5, 0.01,0....

    Text Solution

    |

  12. One gram of charcoal adsorbs 100ml of 0.5M CH(3)COOH to form a monolay...

    Text Solution

    |

  13. For coagulation of 10ml of a positive sol, the volumes of IM each NaCl...

    Text Solution

    |

  14. Tyndall effect is observed during the projection in a cinema theatre. ...

    Text Solution

    |

  15. For the coagulation of 100ml of arsenious sulphide solution, 5ml of IM...

    Text Solution

    |

  16. Ferric chloride forms both positively and negatively charged sols. Exp...

    Text Solution

    |

  17. Comment on artificial rain.

    Text Solution

    |

  18. The coagulation of 100ml gold sol is completely prevented by adding 0....

    Text Solution

    |

  19. Write the difference in the size of sterate anion and stearate micelle...

    Text Solution

    |

  20. How are associated colloids different from multimolecular and macromol...

    Text Solution

    |