Frendich Adsorption Isotherm:-

  • The extent of the adsorption at a given surface is generally increases with increase in pressure and concentration at constat temperature.
    – the extent of adsorption is thus expressed as x/m where m is mass of the adsorbent, x is the mas of  adsorbate when adsorption equilibrium is reached.

Limitation of freundlich adsorption Iso therm:-

  • The experimental values, when plotted for given isotherm, show some deviation from linearity specially at high pressures.
  • Hence the relation is considered as an approximate one and holds good over a limited range of pressure.
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