UncategorizedThe mass of gas adsorbed, x, per unit mass of adsorbate, m, was measured at various pressures, p. A graph between logxm and p gives a straight line with slope equal to 2 and the intercept equal to 0.4771. The value of xm at a pressured of 4 atm is : (Given log 3=0.4771)

The mass of gas adsorbed, x, per unit mass of adsorbate, m, was measured at various pressures, p. A graph between logxm and p gives a straight line with slope equal to 2 and the intercept equal to 0.4771. The value of xm at a pressured of 4 atm is : (Given log 3=0.4771)

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    Solution:

    Mathematical expression of Freundlich adsorption isotherms:

    xm=kp1n...(1) logxm=log k+1nlog p...(2)

    slope is 2, means 1n=2, log p=4 atm and log k=0.4771

    log k=0.4771 k=3 xm=3×42=48 (substitute in equation-1)

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