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  • Answer please! If x is amount of adsorbate and m is amount of adsorbent, which of the following relations is not related to adsorption process?

If x is amount of adsorbate and m is amount of adsorbent, which of the following relations is not related to adsorption process?

  • Option 1)

    x / m= f(p) at constant T

  • Option 2)

    x / m= f(T) at constant p

  • Option 3)

    p=f(T) at constant (x / m)

  • Option 4)

    \frac{x}{m}=p\times T

 

Answers (1)

best_answer

 

Freundlich isotherm graph -

\frac{x}{m}= K\cdot p^{1/n}

This curve indicate that at fixed pressure there is a decrease in physical adsorption with increase in temperature

- wherein

Surface Chemistry Image 1

 

 

Adsorption from solution phase -

\frac{x}{m}= KC^{1/n} 

- wherein

Freundlich's equation approximately describe the behaviourof adsorption from solution with a difference that instead of pressure concentration is taken into account.

 

 \frac {x}{m}= p \times T


Option 1)

x / m= f(p) at constant T

This is incorrect answer

Option 2)

x / m= f(T) at constant p

This is incorrect answer

Option 3)

p=f(T) at constant (x / m)

This is incorrect answer

Option 4)

\frac{x}{m}=p\times T

This is correct answer

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Plabita

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