J & K CET Medical J & K - CET Medical Solved Paper-2014

  • question_answer
    What is the value of 1/n in Freundlich adsorption isotherm ?

    A)  Between 2 and 4 in all cases

    B)  Between 0 and 1 in all cases

    C)  1 in case of chemisorptions

    D)  1 in case of physical adsorption

    Correct Answer: B

    Solution :

     Freundlich adsorption isotherm is given as \[\frac{x}{m}=k{{p}^{1/n}}\] Or \[\log \frac{x}{m}=\log k+\frac{1}{n}\log p\] Graph between\[\log \frac{x}{m}\]and\[log\text{ }p\]is a straight line with slope\[\frac{1}{n}\]and intercept log k. Thus, value of\[\frac{1}{n}\]lies between 0 and 1 in all cases.


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