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JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Adsorption and adsorption isotherm

  • question_answer
    What will be the effect of increase in temperature on physical adsorption                                            [Pb. CET 2000]

    A)                 It will decrease

    B)                 It will increase

    C)                 First increase then decrease

    D)                 None of these

    Correct Answer: A

    Solution :

                    Since adsorption is an exothermic process (taking place with the evolution of heat) therefore in accordance with Lechatelier's principle, the magnitude of physical adsorption will decrease with the increase in temperature. In case of chemisorption the adsorption first increase and then decreases with increase in temperature.    


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