Question
Write an equation for Freundlich adsorption isotherm.
✓
Answer
Freundlich proposed the following empirical equation for adsorption of a gas on solid.
$
\frac{x}{m}=k P^{1 / n}(n>1)
$
where,
$x=$ Mass of the gas adsorbed
$m =$ Mass of the adsorbent
$\frac{x}{ m }=$ Mass of gas adsorbed per unit mass of adsorbent
$P=$ Equilibrium pressure
$k$ and $n$ are constants which depend on the nature of adsorbate, adsorbent and temperature.
$
\frac{x}{m}=k P^{1 / n}(n>1)
$
where,
$x=$ Mass of the gas adsorbed
$m =$ Mass of the adsorbent
$\frac{x}{ m }=$ Mass of gas adsorbed per unit mass of adsorbent
$P=$ Equilibrium pressure
$k$ and $n$ are constants which depend on the nature of adsorbate, adsorbent and temperature.
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