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  • How to solve this problem- - A dsorption of gas follows Freundlich adsorbtin isotherm. In the given plox ,x is the mass of the ga - Surface Chemistry - JEE Main

A dsorption of gas follows Freundlich adsorbtin isotherm. In the given plox ,x is the mass of the gas  adsorbent at pressure P.   \frac{x}{m}  is propotional to:

 

 

  • Option 1)

    p^{2}

  • Option 2)

    p^{\frac{1}{4}}

  • Option 3)

    p^{\frac{1}{2}}

  • Option 4)

    p

Answers (1)

best_answer

 

Freundlich adsorption isotherm -

Freundlich gave an empirical relationship between the quantity of gas adsorbed by a unit mass of solid adsorbent and pressure at a particular temperature

- wherein

\frac{x}{m}= K.p^{1/n} (n>1)

As we know that:

From the graph \frac{x}{m}= K\left ( p \right )^{\frac{1}{2}}\left ( theorem \right )

log\frac{x}{m}= log K+\frac{1}{n}log P

m= \frac{y}{x}\left ( slope \right ),\frac{1}{n}is\, \, slope,\frac{1}{n}= \frac{2}{4}= > n= 2

\frac{x}{m}= KP^{\frac{1}{2}}= > \frac{x}{m}\propto P^{\frac{1}{2}}

 

 

Logarithmic graph of Freundlich isotherm -

log\frac{x}{m}= log K+\frac{1}{n}log p

- wherein

The slope of the straight line gives the value of 1/n. The intercept on y-axis gives the value of log K.

 

 


Option 1)

p^{2}

Option 2)

p^{\frac{1}{4}}

Option 3)

p^{\frac{1}{2}}

Option 4)

p

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