List of top Physical Chemistry Questions on Adsorption asked in Indian Institute Of Technology Joint Admission Test for MSc

The correct assumption(s) required to derive Langmuir adsorption isotherm is/are

Adsorption of a gas on a solid surface follows the Langmuir isotherm. If \(\frac{ k_a}{k_d}\)=1.0 bar^-1 , the fraction of adsorption sites occupied by the gas at equilibrium under 2.0 bar pressure of the gas at 25 °C is 
( k_a and k_d are the rate constants for adsorption and desorption processes, respectively, at 25 °C)

The nature of interaction involved at the gas-solid interface in physisorption is