For a linear plot of log (x/m) versus log p in a Freundlich adsorption isotherm, which of the following statements is correct ?  (k and n are constants)

  • Option 1)

    Both k and 1/n appear in the slope term.

     

  • Option 2)

    1/n appears as the intercept.

     

  • Option 3)

    Only 1/n appears as the slope.

     

  • Option 4)

     log (1/n) appears as the intercept.

     

 

Answers (1)

As we learnt in

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.

 

 If a graph is plotted between log \frac{x}{m} and logP a staright line will be obtained. 


Option 1)

Both k and 1/n appear in the slope term.

 

This option is incorrect.

Option 2)

1/n appears as the intercept.

 

This option is incorrect.

Option 3)

Only 1/n appears as the slope.

 

This option is correct.

Option 4)

 log (1/n) appears as the intercept.

 

This option is incorrect.

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