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JEE Main 20179 AprilOnline
Exam
JEE Main
Year
2017
Date
9 April
Mode
Online
Subject
Chemistry
Chapter
Surface Chemistry

JEE Main 2017 · 9 April · Online · Chemistry · Surface Chemistry

Adsorption of gas on a surface follows Freundlich adsorption...

Adsorption of gas on a surface follows Freundlich adsorption isotherm. The plot of logxmlog \dfrac{x}{m} versus loglog\left(P\right)givesastraightlinewithslopeequaltogives a straight line with slope equal to0 . 5,then:<br/><br/>(, then:<br /><br />(\dfrac{x}{m} is the mass of the gas adsorbed per gram of adsorbent)

Options

  1. Aadsorption is proportional to the square root of pressure.
  2. Badsorption is proportional to the square of pressure.
  3. Cadsorption is proportional to the pressure.
  4. Dadsorption is independent of pressure.

Correct answer

A. adsorption is proportional to the square root of pressure.

Step-by-step solution

log⁡(xm)=12log⁡(P)+log⁡(K);\log ( \dfrac{x}{m} ) = \dfrac{1}{2}\log ( P ) + \log ( K ) ;
xm=KP12\dfrac{x}{m} = KP\dfrac{1}{2}
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