A plot of logxm vs. log p for adsorption of a gas on to a solid gives us a straight line with slope equal to:
A
n
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B
1n
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C
log K
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D
log p
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Solution
The correct option is B1n According to Freundlich: xm=Kp1n or, log(xm)=log K+1nlogp Where, ′x′ is the mass of adsorbate, ′m′ is the mass of adsorbent, ′K′ and ′n′ are constants which depend on the nature of the adsorbent and the gas at a particular temperature. ′p′ is the pressure.