AP EAMCET20227 Jul 2022Evening ShiftChemistrySurface ChemistryActual
Freundlich adsorption isotherm fails at which of the following condition?
Options
- AHigh temperature
- BLow temperature
- CHigh pressure
- DLow pressure
Correct answer
C. High pressure
Step-by-step solution
The Freundlich adsorption isotherm is the mathematical representation for the variation of the extent of adsorption (x / m) with pressure (p) at a given temperature. x / m=k p^ 1 / n (n>1) where ' x ' is the mass of the gas adsorbed on mass ' m ' of the adsorbent at pressure ' p '. ' k ' and ' n ' are constants that depend on the nature of the adsorbent and the gas at a particular temperature. Experimentally, it was determined that the extent of gas adsorption varies with pressure raised to the power 1 / n until sa